Tag Archives: Weather

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Two weeks ago (October 24th to be exact), I posted a blog heralding the arrival of “Rarity Season” here in Maine. The next day, a Townsend’s Solitaire was found on Hermit Island in Phippsburg. “Here we go,” I thought.

Unfortunately, things didn’t pick up immediately. In fact, despite some very good birding for the next week, there were few rarities discovered: a few Orange-crowned Warblers here and there, but a lot of “lingering” migrants. American Tree Sparrows, Snow Buntings, and a lot of waterbirds arrived, but these are all typical of the season. Personally, I had some great birding that week, such as an impressive array of tarrying shorebirds (led by the continuing family group of American Oystercatchers, a Hudsonian Godwit, and 6 Red Knots) in and around Biddeford Pool on the 27th, a nice diversity of birds at Reid State Park with Jeannette on the 28th (Tennessee Warbler, first-of-fall Snow Bunting, an impressive 473 Sanderlings), a huge count of 915 Ruddy Ducks and a continuing hen Redhead (a rarity) at Sabattus Pond with a friend on the 30th, more late shorebirds with 2 Semipalmated Sandpipers and 3 White-rumped Sandpipers at Pine Point on the 31st, and migrant sparrows in local patches and under feeders, including an increasing number of Dark-eyed Juncos and American Tree Sparrows. I also enjoyed two light flights at Sandy Point. And of course there are the goose fields to scour. (Don’t forget that I post near-daily reports to the store’s Facebook Page).

So yeah, I love October birding, even without rarities, and while landbird diversity decreases in November, there is still a lot of fun stuff to uncover. While rarities had been few during the first week or so of Rarity Season, I think the mild weather played a role: birds have just not been concentrated yet in warm microclimates and seasonally-productive microhabitats.

Plus, with more birders in the field on the weekends, more “good” birds are usually discovered. Unfortunately, the weekend of Nov 1-2 didn’t exactly invite a lot of people outside. In fact, for the first time, my annual Southcoastal Maine Rarity Roundup (where a group of us get together to scour the coast) was postponed. The massive coastal Nor’easter produced a heavy, wet, early-season snowfall (over 15” in Bangor and the Camden Hills!) and very strong north to northeasterly winds. It was a nasty day.

While sea-watching was undoubtedly fantastic in periods when there was actually visibility, few reports of anything trickled in, as most birders stayed inside or found little of interest to report. The exception was a Greater White-fronted Goose, the first of the season, at the Greater Yarmouth Goose Fields.

With Jeannette out of town, my time was limited on Sunday and Monday mornings, but a walk with Sasha at Florida Lake Park on Sunday morning yielded a shock, with 5 Redheads. These were my 154th Patch Bird here, and while I went there hoping for some grounded waterfowl, these were definitely not the species I was expecting!

But in the wake of the storm, the first really cold air of the season arrived. Portland had its all time-record latest freeze, and for the first time, it received a measurable snowfall before the first freeze! Not surprisingly, some interesting birds arrived at feeding stations. There was a Baltimore Oriole at a Cape Elizabeth feeder and a Dickcissel at a Winterport feeder, for example. Plus, more Dark-eyed Juncos, American Tree Sparrows, and the first Fox Sparrows have filtered in (my first of the fall was in our Pownal yard on Monday morning). The usual smattering of late “lingering” warblers have been noted here and there as well, and there are a few very late Hudsonian Godwits and other shorebirds tarrying here and there.

With another active week of weather, I was antsy to get out birding, but unfortunately my schedule was a little busy. I had Tuesday, however, and made the most of it. Although I failed to turn up anything of note in the morning on Bailey and Orr’s Islands in Harpswell, Sabattus Pond was excellent again later that afternoon, led by still amazing counts of Ruddy Ducks, and now a pair of Redheads – it’s shaping up to be a very good fall for them in Maine.

And then this morning in Cape Elizabeth was exceptional. In fact, it was one of the best mornings that I have had so far this late fall. There was an Orange-crowned Warbler at Kettle Cove, a Gray Catbird at Crescent Beach State Park, and a Blackpoll Warbler with a Common Yellowthroat at Pond Cove.

But 2 hours on a private farm was absolutely unreal: Two Clay-colored Sparrows, a Dickcissel, an Orange-crowned Warbler, a wicked late Prairie Warbler and Lincoln’s Sparrow, an Indigo Bunting, 2 Common Yellowthroats, a Northern Goshawk, and my first Northern Shrike of the year, a brown immature. 100+ each of Dark-eyed Junco, House Finch, and American Goldfinch; 75+ each of Song and White-throated Sparrows; 40+ Swamp and 20+ Savannah Sparrows. And a single White-crowned Sparrow was my 10th sparrow species here today!

1 of 2 Clay-colored Sparrows present this am.

But now we’ve reached the weekend, and I expect some fun stuff to be found. Surrounding states have also been relatively slow for rarities (but New Hampshire has started to pick up with continuing Yellow-headed Blackbirds and now a Western Grebe), likely due to the same factors as here in Maine, principally the mostly mild weather to date. Sunday will be our Rarity Roundup here in Maine, so I will look forward to seeing what we find – there has to be something really good out there! And if Cape Elizabeth today was a sign of things to come, the RR should be a whole lot of fun.

On Recent and Upcoming Weather, Vagrant Season, and Recent Great Birding

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Late October through early November is traditionally the best “rarity season” in Maine, where vagrants from all directions are hoped for, and even expected. We’ve been in a rather active and dynamic weather pattern of late, and this may help to usher vagrants in our direction. While weather rarely “blows” birds off-course, winds and weather systems can certainly facilitate their arrival in far-flung places, especially when combined with some sort of misorientation (for a thorough discussion of the concept, see Chapter 7 of my book, How to Be a Better Birder).

As October progresses, the nights get longer, and the days (usually) get colder. The growing season comes to an end (although in many spots the killing frost has not yet reached the immediate coastline yet this year), and food sources become greatly limited. This can push vagrants that may have arrived over the course of the fall migration into favorable micro-climates and patches of seasonal food abundance. More recently-deposited vagrants, “late/lingering” migrants, and other more typical species can also concentrate in such prime areas, such as urban parks, coastal migrant traps, and so on.

Let’s take a look at some of the recent weather, and attempt to identify some possible species to consider.

Over the past ten days, above normal temperatures were regular, thanks to southerly winds. Take a look at the wind map from October 13th, for example.

Strong southerly winds pumped warm air into the area from the Deep South and the Bahamas (and the South Atlantic Bight). These are favorable conditions for depositing “180-degree misoriented migrants” from the south, such as Summer Tanagers and White-eyed Vireos. I wonder if it’s a little too late for a big push of southern birds, however, as many of the Neotropical migrants have already departed the continent. Meanwhile, that extensive southerly flow all of the way into Mexico is the type of weather pattern that can facilitate the arrival of long-distance vagrants, such as Fork-tailed Flycatcher.

Sparrows are on the move now, and northerly winds with cloudy skies overnight on 10/18 to 19 resulted in a big push of sparrows. The low ceiling likely resulted in disorientation of these low-flying migrants by the big city lights, resulting in a massive flight of birds in Portland’s East End on the morning of the 19th. I estimated over 2000 White-throated Sparrows and 500 Song Sparrows just on the Eastern Promenade alone, with dozens more in almost every lot I checked. A hundred White-throats were in the North St Community Garden, and by the end of the morning, I had tallied 8 species of sparrows, and impressive numbers of Chipping Sparrows (76) and Eastern Phoebes (15) among others. Although 2 Red-bellied Woodpeckers were my 175th species on my Eastern Promenade Patch List, I was surprised that I could not tease out any rarities from the volumes of birds (the sheer number of birds plus gusty winds hampered detection, no doubt).

By 10/19, a strong cold front – a rare occurrence this season – pushed through, and with it, a huge flight of migrants. I tallied over 1100 birds at Sandy Point on the morning of the 20th, led by 461 Yellow-rumped Warblers and 159 American Robins.

You can see how strong and extensive these northwesterly winds finally were from the wind map that day.

Rain began to arrive in the afternoon of the 21st, and it didn’t let up until this morning. This massive coastal Nor’easter drenched Maine with up to 5” of rain, and moderate to strong northeasterly winds battered the state, especially the coast.

Birding was a challenge on Wednesday and Thursday, as strong winds and often-heavy rain made things difficult. Rain and coastal fog and mist precluded seawatching, and any lake-watching for grounded waterfowl was rendered impossible by visibility and waves. Essentially, feeder-watching was the best bet these two days, and a growing contingent of sparrows at both our home and here at the store provided the entertainment. About 200 Common Grackles descended into our Pownal yard on the 23rd as well.

But now, today (Friday), this massive storm is finally pulling away.

And I had a great day of birding in Cape Elizabeth. I began with some seawatching at Dyer Point. From 7:50 to 9:50, I had moderate to good visibility for all but a total of 47 minutes as light showers and mist rolled through. Seas were down to 4-6 feet, and moderate north winds continued. Here’s the scorecard (all southbound unless otherwise noted) – which was actually a little lighter than I had expected:
317 Double-crested Cormorants
127 Northern Gannets (about evenly split between north and southbound)
77 Common Eiders (several hundred northbound)
20 White-winged Scoters
18 Black Scoters
17 Red-breasted Mergansers
16 unidentified ducks
16 Common Loons (plus 18 northbound)
15 Surf Scoters
10 “dark-winged” scoters
8 Long-tailed Ducks (first of fall)
8 Red-throated Loons
5 Great Blue Herons
5 Bonaparte’s Gulls
3 Red-necked Grebes
2 Green-winged Teal
2 Great Cormorants
2 Laughing Gulls
1 Black Guillemot
1 Peregrine Falcon
1 White-throated Sparrow (flew in off the water at 8:05am).

Next up was Kettle Cove, where a nice diversity of migrants, especially sparrows, also included an Orange-crowned Warbler and 3 Common Yellowthroats. Even more interesting was this gull, which appears to be a hybrid Herring x Great Black-back. Intermediate in size and shape between the two, and with an intermediate mantle color, the short wings and pinkish legs separate it from Lesser Black-backed.

A local sparrow-rific patch of private property was fruitful as well. Although a very tardy Bobolink was the only surprise here, plentiful numbers of sparrows included 200+ White-throated, 100+ Song, 50+ Swamp, 50+ Savannah, 50+ Dark-eyed Juncos, at least 10 White-crowned Sparrows, and a single Lincoln’s Sparrow. A Red-bellied Woodpecker and my second Carolina Wren of the morning were added to the tally.

A male Black-throated Blue and a female Black-and-white Warbler joined Palm and Yellow-rumped Warblers feasting on seaweed flies in and near the wrack at Pond Cove, where another Red-bellied Woodpecker was sounding off.

On my way back, I swung through the goose fields, and clearly more Canada Geese have arrived in the last few days. 718 was a new season-to-date high count, with the most interesting new arrival being this spiffy leucistic Canada. Unlike a hybrid with a Snow or a Domestic Goose, this neat bird was the same shape and size as the average Canada, but with a dull brownish cast to the head, neck, and wingtips.

As this nasty low rides up into Atlantic Canada and beyond, strong wrap-around winds will offer the potential to displace Northern Wheatears or rare geese from Greenland. Meanwhile, next week, we’ll see unseasonable warmth return on southwesterly winds (“vagrant winds” as I like to call them), just the type of scenario that can facilitate the arrival of strays from the southwest, such as Cave Swallows and Ash-throated Flycatchers. They will also facilitate the survival for at least a little longer of vagrants that are still present but as so far gone undetected.

There isn’t one predominate pattern that yields a strong suggestion of any particular vagrant (or group of vagrants) from any particular direction. However, it is clear that we are getting a nice sample of different conditions that could produce some fun stuff.

At the very least, I expect some big flights of migrants, both day and night in the coming days. In fact, I think there will be a big one tonight. Check out these northwesterly winds that should be ushering in a big push of birds:

Sparrows will make up the bulk of the flight, especially White-throated Sparrows and Dark-eyed Juncos. If the clouds clear by dawn, I might get a big push at Sandy Point. If the ceiling stays low overnight, look for concentrations of sparrows in migrant traps, especially in and around bright cities. Meanwhile, during the day, a lovely weather forecast should get plenty of birders out into the field.

Needless to say, I will be out looking, and I hope you will to! I look forward to what the coming days and weeks will bring.

October Birding in Maine.

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October is my favorite month of birding in Maine. Great diversity, opportunities for observing the thrilling phenomena of migration, an increased chance for rarities, and often-beautiful weather combine to make for exciting times in the field. I keep my schedule as free as possible for the month to maximize my birding time, and luckily, a current project dictates even more time in the field for me. For the past five days, October birding was at its finest, and my adventures nicely summarized what this glorious month has to offer.

On Friday, I spent the morning exploring 8 preserves of the Harpswell Heritage Land Trust. Six hours and about 5 miles of walking later, I had a better feel for the properties on Harpswell Neck, and their (significant) birding potential.

Widgeon (sic) Cove Preserve.

I didn’t find anything out of the ordinary today – best birds were probably the Carolina Wren at Pott’s Point, a Red-bellied Woodpecker at the Skofield Shore Preserve, and a Nelson’s Sparrow at Stover Point – but almost all sites were delightfully birdy. Yellow-rumped Warblers were in abundance (especially at Mitchell Field) and there were plenty of Palm Warblers around (again, especially at Mitchell Field). Other then a few Blackpoll Warblers, my only other warblers were single Pine at Skofield and a Black-throated Blue at the Curtis Farm Preserve.

Sparrows were widespread, as were Purple Finches and Pine Siskins, Red-breasted Nuthatches, and increasing waterbirds including a few groups of Surf Scoters. Mitchell Field was definitely the hotspot today, with good numbers of all expected migrants, along with migrant Osprey, a Sharp-shinned Hawk, a single Indigo Bunting, 3 Gray Catbirds, and 5 Monarchs.

After several nights with little visible migration (although there’s almost never “no” migration at this time of year!), clear and mostly light westerly conditions overnight Friday into Saturday produced a huge flight. Unfortunately, come dawn, clouds had rolled in and winds immediately shifted the northeast. Combined, the Sandy Point Morning Flight was reduced to a mere dribble totaling 91 birds, led by 36 Yellow-rumped Warblers. I was then shocked by a relatively slow birdwalk (even sparrow numbers were far lower than I would have expected) at Old Town House Park – where did all of the migrants overnight go? A Brown Thrasher was a good bird for here though.

Luckily, Saturday was the anomaly. After another very strong flight overnight, Sunday morning finally featured a light northwesterly wind. Therefore, I finally got my fix in at Sandy Point, with my largest flight of the season. 9 species of warblers and a few new records highlighted the flight, with the following tally:

6:49-9:35am.
38F, clear, NW 5.1 to calm to WNW 4.7mph.

768 Yellow-rumped Warblers (*New Record).
421 Ruby-crowned Kinglets (*2nd highest).
179 Dark-eyed Juncos
116 Unidentified
87 Pine Siskins
79 American Robins
62 Black-capped Chickadees (*New a Record).
31 Golden-crowned Kinglets
26 Purple Finches (*New Record High).
21 Palm Warblers
20 Rusty Blackbirds (*Tied Record High).
17 Canada Geese
14 Blue-headed Vireos
14 Red-breasted Nuthatches
14 White-throated Sparrows
12 Chipping Sparrows
11 Savannah Sparrows (*New Record).
9 Northern Flickers
7 Eastern Phoebes
6 Black-throated Blue Warblers
5 Gray Catbirds
5 Swamp Sparrows
4 Unidentified kinglets
4 Black-throated Green Warblers
3 Brown Creepers
3 Hermit Thrushes
3 Nashville Warblers
3 White-crowned Sparrows
2 American Black Ducks
2 Blue Jays
2 WHITE-BREASTED NUTHATCHES (*tied record high).
2 Unidentified Catharus thrushes
2 Common Yellowthroats
2 Black-and-white Warblers
2 Lincoln’s Sparrows
2 American Goldfinches
1 Osprey
1 Yellow-bellied Sapsucker
1 Unidentified vireo
1 TUFTED TITMOUSE
1 Swainson’s Thrush
1 Nashville/Orange-crowned Warbler
1 Northern Parula
1 Blackpoll Warbler
1 MAGNOLIA WARBLER
1 Cedar Waxwing

Total = 1798 (*3rd Highest October Count).

Afterwards, I began a quick trek east, visiting a friend in Camden, and having dinner with friends in Bar Harbor. In between, I enjoyed a little casual birding, and the fall foliage.

The Penobscot Narrows Bridge.

On Sunday, Rich MacDonald and I did a little birding on the western half of Mount Desert Island. An “interior/bay” subspecies of Nelson’s Sparrow at Back Beach in Tremont was a highlight, as was a nice variety of birds off Seawall Beach, including an unseasonable 148 Laughing Gulls. 20 Red-necked Grebes and about a dozen White-winged Scoters were also present.

At noon, we boarded the Friendship V of the Bar Harbor Whale Watch for 3.5 hours offshore. I was really hoping for a Great Skua – my real reason (legitimate excuses aside) for this trip, afterall – but it was a rather slow day on the water. But hey, any day with a jaeger is a good day in my book, and we saw 3 Pomarines. 18 Northern Fulmars were a treat, but birds-of-the-trip honors goes to a rather unseasonable Manx Shearwater. A single Great Shearwater, Black-legged Kittiwake, and a measly 3 Northern Gannets were all we could muster. Apparently, those northwesterly winds that finally gave me my flight at Sandy Point also pushed sea creatures out from these waters!

Subadult Pomarine Jaeger.

It was a quick trip Downeast, so I was home by Monday night, and in the morning – following a night with a return to southwesterly winds and no visible migration on the radar – Jeannette and I headed in the other direction. A ridiculously gorgeous day (light winds, temps in the low 70’s!) encouraged us to spend all daylight hours outside and birding hard, covering our usually route between Kittery and Wells.

As usually, Fort Foster provided the highlights, led by a White-eyed Vireo and an Orange-crowned Warbler. Another Orange-crowned was at Seapoint Beach, an “Ipswich” Savannah Sparrow was in The Nubble neighborhood, 12 Brown-headed Cowbirds were at the feeders behind The Sweatshirt Shop in Wells, and Community Park hosted a Nelson’s Sparrow (ssp. subvirgatus).

Ten (and a half) species of sparrows (Eastern Towhee, Chipping, Savannah – plus “Ipswich,” Nelson’s, Song, Lincoln’s, Swamp, White-throated, White-crowned, and Dark-eyed Juncos) and six species of warblers (Orange-crowned, Black-throated Blue, Pine, Palm, Yellow-rumped, and Common Yellowthroat) were tallied, along with six species of butterflies (including a few dozen Monarchs). Throughout the day we encountered lots of Yellow-rumped Warblers, Song and White-throated Sparrows, along with most of the regular October migrants from Horned Grebes (FOF) to Ruby-crowned Kinglets.

So there you have it. That’s just a sample of what mid-October has to offer here in Maine. What’s left? Finding that “Mega” rarity of course!

A Great May Week of Birding in Review, and Some Predictions for More Feathery Fun.

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Simply put, it has been a helluva week of birding in Maine! Strong flights of migrants occurred on 5 of the last 7 nights, producing a whole lot of new arrivals throughout the region. And then there were rarities, but we’ll get to that shortly.

As for regularly-occurring migrants, birds are arriving right about on time now. By week’s end, some of the latest arriving warblers, like Blackpoll have begun to trickle in, while the early migrants like Yellow-rumped and Palm have thinned out considerably. Some locally-breeding Pine Warblers are rarely singing now, as breeding season for them is well underway.

Almost anywhere you went this week, 12 or more species of warblers was possible. I enjoyed 15 species at Florida Lake on Monday and 17 species at Evergreen Cemetery on Thursday, for example. The third week of May is when the coveted 20-species morning total is most likely around here, so you know I will be gunning for that in the coming days.

I added Lincoln’s Sparrow, Lesser Yellowlegs, White-crowned Sparrow (#126, 127, and 128 respectively) to my Bradbury Mountain patch lists this week, and a Lincoln’s Sparrow was the first in our Pownal yard (#116) on Sunday. Meanwhile, a spiffy male Orchard Oriole was the 114^th species at our store, a one-day wonder at our feeders on the 10^th. So it’s been a great week for patch listing as well!

And Scarborough Marsh was just awesome on Tuesday morning, when Katrina and I had unbelievable numbers (for spring) off of Eastern Road, including 1500+ Tree Swallows, 500+ Least Sandpipers, 400+ Barn Swallows, ~125 Greater and ~100 Lesser Yellowlegs, 75-100 Bank Swallows, 6++ Semipalmated and 2++ White-rumped Sandpipers (both FOY), 2 adult Dunlin, and the continuing Tricolored Heron. Nothing rare per se, but the biomass of birdage was impressive, and was definitely the highlight of the week.

Following the “Mega” rarity Northern Wheatear that was last seen last Saturday in Scarborough Marsh, rarity news has been decidedly southern in nature. Although small numbers of “overshooting” southern vagrants are typical in Maine every spring, the number of White-eyed Vireos (I caught up with one at Capisic Pond Park on Thursday with my friend Lois), Summer Tanagers (I saw one in Georgetown last week with Katrina; see above), and Blue-gray Gnatcatchers (they’re everywhere!) is most impressive. Then there was a Painted Bunting on Monhegan this week, a Swallow-tailed Kite at the Bradbury Mountain Hawkwatch on 5/7, and a Mississippi Kite also at The Brad as the grand finale on the 15^th. The widespread smattering of Orchard Orioles is a little more typical.

This pattern of southerly vagrants is not caused by birds being “blown” here in a simple sense, but instead we believe it is caused by southerly winds facilitating their arrival beyond their normal range – perhaps by causing a bird to travel much further (in relation to the ground) in each night’s flight thanks to a favorable tailwind. Perhaps others were entrained by strong winds off the South Atlantic Bight and were pushed northwards until they made landfall in the Northeast (I wonder if the Boston Fork-tailed Flycatcher arrived this way?).

Less fitting of any particular pattern is the remarkable adult Black-headed Grosbeak that was on Monhegan this week – at the SAME FEEDER as the Painted Bunting, 2 Summer Tanagers, a Lark Sparrow, and a Dickcissel. <expletive deleted> And, not to be overshadowed, a dapper male Ruff was found in Bangor.

With a deep southerly flow continuing, and some very unsettled weather coming for the weekend, I think things will be getting quite interesting in the coming days. (I don’t want to know how many “Island Birds” Kristen Lindquist will pick up over me on Monhegan this weekend!). Check out this wind map from the 15^th, showing a very strong southerly flow originating all of the way from Florida and the Caribbean.

For those of us not on Monhegan this weekend, I sure hope you’ll be birding hard – not despite the weather, but because of the inclement weather. At the very least, keep an eye on those feeders. Both here at the store and at home, we’re stocked up with mealworms, jelly, oranges, insect suet, and nut blocks. Not only will the cool, wet weather limit natural food sources, but the slow progression of the season continues to put a lot of important food sources well behind the birds’ required schedules.

For example, apples and cherries are only now starting to bloom. Early-arriving nectavores and insectivores flock to these (and other early-season bloomers like Shadbush, azalea, and quince) for both nectar and the insects attracted to that nectar. The lack of a lot of flowers so far this season has pushed many orioles (including some Orchards in addition to the regular Baltimores), Gray Catbirds, and Scarlet (and some Summers) Tanagers to feeding stations in above-average numbers. I expect that trend to continue through the middle of next week, as a stubborn upper-level low remains locked overhead producing unsettled weather.

So keep an eye out the window, get outside, and find some good birds! And regardless of rarities, it’s just a great time to be birding!

Three Days of Migration Watching in May -Day and Night.

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In my blog last Wednesday, I made some prognostications about what we might expect for birds in the coming days. Let’s see how I did so far.

Rain began to fall Wednesday evening, and continued, heavy at times, through Thursday morning. With a persistent easterly wind, overnight migration was non-existent. In the rain on Thursday morning, Katrina and I checked out Florida Lake Park, but found only about 20 Yellow-rumped and 10 Palm warblers – fewer than in recent days. The local River Otter pair, however, put on a great show. Nothing new under the feeders at home (or at the store), either.

Afterwards, I took a spin through the local farms and fields, but found nothing out of the ordinary; it’s too early for most shorebirds anyway. Admittedly, however, I had vagrants on my mind (and still do! As usual). Although the southerly winds conducive to southern overshoots (as I discussed in the aforementioned blog) had yet to kick in, the deep easterly flow that we have been ensconced within could offer up its own surprises. With reports of the “largest incursion of Icelandic/European birds to Newfoundland in recent memory,” including amazing tallies of European Golden-Plovers, 9 Black-tailed Godwits, North America’s 4^th (or so) Common Redhank…yeah, the “Rarity Fever” in me can’t help but kick up. Perhaps something will ride one of those Iceland-Portland cargo ships that are in service these days!

Light rain continued through Thursday morning, diminishing to drizzle and fog until the afternoon, when a shift to westerly winds began to clear things out. Overnight, light and variable winds suggested a good migration should occur, but the radar wasn’t showing more than a light flight.

However, it was foggy for much of the night, and fog can obscure the image of birds on the radar, especially if they are flying low. “Birding by radar” is not infallible, and I had a feeling it might have been a little misleading this morning. A steady trickle of Yellow-rumped Warblers moving over the yard at dawn confirmed this. The weather was just too-not-terrible for there not to be a lot of birds on the go.

So off to Florida Lake I went. And, for a change this spring, I was not disappointed. 100+ Yellow-rumped Warblers, 20+ Palm Warblers, my first Northern Waterthrush and Black-throated Green Warbler (finally!) of the year, a singing migrant Greater Yellowlegs, and much, much more. I caught the lingering pair of Green-winged Teal copulating; are they going to breed here? Ring-necked Ducks had increased to 16 and there is still a pair of Common Mergansers here.

As the fog burned off, the sun shone brightly, and heat began to rise in swirling thermals, hawks took to the skies on the light westerly wind. I had to pull myself away from the hawkwatch kicking and screaming at 12:30, but by then we had eclipsed (at 10:35) our all-time record count of 4,474 birds when a Merlin streaked by. 388 Broad-winged Hawks and 22 Sharp-shinned Hawks were included in the total of 429 migrant raptors when I departed.

Last night’s passerine migration – yup, the fog on the radar definitely obscured the intensity of the flight! – was still evident well past noon, as Yellow-rumped Warblers were still on the go, reorienting inland after last night’s flight. Well over 200 had passed the summit by the time I departed, as did my first two Chimney Swifts and Eastern Kingbirds (also 2) of the year. And by day’s end, 705 raptors led by 583 Broad-wings were tallied, adding to our record totals. Around 4:00pm, our 5000^th raptor had passed – a milestone we never thought we would reach.

Come nightfall, the radar was active once again. Here are the 1am reflectivity and velocity images for example:

Notice the dark greens in the center of the return, but overall the rather narrow diameter of the image? My guess is that mostly overcast skies and a light westerly winds, perhaps including some turbulence from the passing cold front, kept birds low once again. But, without fog around, it was certain that this was birds – confirmed by the distance SW-NE pattern of the velocity image, and its speed. I think it was actually a lot of birds.

And come morning, Yellow-rumped Warblers were overhead as I stood on the back porch at dawn, and the Saturday Morning Birdwalk group and I headed over to Florida Lake. Yeah, it was good. Very good.

In the past few days, we’ve also finally had the first couple of reports of Ruby-throated Hummingbirds and Baltimore Orioles, so that those have just begun to arrive. As I mentioned the other day, food is in short supply for these backyard favorites, so feeders are going to be important for the first arrivals.

But no vagrants from the south, or East …yet!

Biddeford Pool Snowy Owl and Weather Discussion

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This was the birding highlight of Tuesday morning’s visit with Katrina to Biddeford Pool.

The first photo was taken shortly after our arrival to The Pool, while the second two -with much more pleasant skies – was taken as we departed around noon. Although its plumage is much more faded and worn now, it is likely that this is the same Snowy that has spent the winter near the western end of mile stretch. Today, it was hunting voles once again on the incoming tide from one of its favorite rooftop perches.

While this was my latest Snowy in Maine, it is far from unprecedented following a massive irruption year. But seeing a Snowy Owl a mere two days away from May is still special; it could be a lifetime before we see an irruption of this magnitude again.

A little further down the road, where the second of the Mile Stretch Snowies overwintered, we found a pile of pellets below one of that bird’s favorite perches. Most were full of small mammal fur and bones, and the skulls were all of voles. One pellet, however, was pure thick, downy feathers – probably from a duck.

But with migration still at a virtual standstill, the rest of the day’s highlights were rather few and far between; very few migrants were around. A pair of Blue-gray Gnatcatchers around the beach parking lot was a nice, and I had my first House Wren of the year in the neighborhood, and my first Laughing Gull off of East Point. 1-3 Black-crowned Night-Herons were also my personal “FOY’s,” but they have probably been present here for at least a couple of weeks now.

The seas and skies sure looked like winter today, and the raw winds and low temperatures – and Snowy Owl! – sure made it seem more like early March than late April!

But yeah, migration has been kinda slow. Although, interestingly enough, the House Wren and Laughing Gull were right on time for me, most of the usual late April arrivals (Black-throated Green Warbler, Northern Waterthrush, Black-and-white Warbler, etc) are nowhere to be seen, and really, have I only heard one Blue-headed Vireo so far this season?

We all know spring has been running late this year, and I would say bird migration is now about 7-10 days behind schedule (catching up from the 2-3 weeks behind schedule of early April). Recently, our onshore winds (not conducive to facilitating migration for birds heading north) in this stubborn blocking pattern (a pattern that has seemingly become more and more regular recently) have not helped matters. Here, for example, is the wind map from Sunday, showing the low pressure system just south of Nova Scotia that was pumping in those onshore winds since late last week.

But take a look at today’s wind forecast…

Here we see the massive low pressure system marching across the Great Plains. But now, on the leading edge of it, we see a deep southerly flow, originating all of the way from the Gulf Coast. This southerly flow is expected to last for at least the next 48 hours.

Although the weather will remain unsettled – and we’re about to get a pretty good soaking tonight and tomorrow – through at least the weekend, I would expect quite a few migrants to begin to trickle in over the next few days. Simply put, some birds are running low on time to wait! And, as evidenced by the 73 and 110 raptors tallied passing The Brad over the last two days, respectively, despite easterly winds, it is clear that some birds simply have to make some progress, and will do so when conditions are at least somewhat favorable (or, at least not completely unfavorable).

Furthermore, these deep southerly flows at this time of year can facilitate the arrival of annual spring “overshoots” from the south (see Chapter 4 of my book, How to Be a Better Birder for a full explanation of this phenomenon). When I see weather patterns such as this, I begin to think about things such as Summer Tanagers, Blue Grosbeaks, and Hooded Warblers!

At least potential food sources (insects emerging from ponds; insects attracted to blooming trees) are getting a little chance to catch up before the bulk of migrant birds arrive. This phenology, or timing, of the plant and insect cycle is critical for migrant birds that need to refuel and/or then fuel up for the next leg of their journey. “Weird” weather such as this doesn’t bother birds as much as it bothers us, but it becomes a real problem when the weather results in the lack of specific food sources.

I haven’t seen much in the way of nectar-producing flowers yet – but Ruby-throated Hummingbirds and Baltimore Orioles often begin to arrive in the first week of May. This is going to be one of those seasons where well-stocked feeding stations are critically important to migrants, especially those that need insects and nectar. Our hummingbird and oriole feeders are out and ready for business, and our feeder is stocked with insect-laden suet blocks (check out our “Photos from Friends of the Store” gallery on our Facebook Page to see what one particular feeding station in Brunswick has been seeing eating insect suet) and live mealworms. It lies in wait for the first hummers, orioles, or any other migrants in need of assistance…oh yeah, any vagrants from the south, too!

Rarity Season-to-date in Review

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I hope you didn’t think that my lack of blogging of late equated to a lack of birding! Quite the contrary, actually – it is Rarity Season afterall! I’ve just been posting more frequent, shorter updates on our store’s Facebook page (you can scroll through the timeline here to see recent posts), especially since I have found myself a bit over-extended with a variety of other projects at the moment – I’ve been working late most nights recently to make up for my morning birding gallivanting.

In fact, I have been birding even harder than usual – if you can believe that! Spurred on by extraordinary late October finds of an “Audubon’s” Yellow-rumped Warbler at Fort Foster and a Bell’s Vireo (a state bird for me!) on Bailey Island, I found myself somehow even more motivated to beat the bush through the first half of November. In addition to the 10^th Annual South Coastal Maine Rarity Roundup that I organize every year, I worked hard at various traditional hotspots, favorite late fall patches, and various attempts to think “outside the box,” such as walking the 4.5 miles into work today to check a handful of swales and thickets en route (not very productive, except for the exercise, for the record)

While Audubon’s Warbler and Bell’s Vireo are going to be tough to beat – the early-rarity-season bar was set awfully high! – I have had some outstanding birding in November, even if there has yet to be another “Mega.” Personal highlights in the first half of November include a very nice variety of lingering (pioneering?) warblers, a Yellow-breasted Chat, multiple Orange-crowned Warblers (I’ve had four this season to date), huge numbers of Ruddy Ducks on Sabattus Pond, and overall just really good birding with good diversity.

Elsewhere around the state, current highlights include a Northern Hawk-Owl in Lincoln – not a vagrant in the “Rarity Season” sort of way, but exciting nonetheless! And perhaps that, along with an early Snowy Owl report from Biddeford Pool, portends a decent owl irruption this winter? There certainly won’t be any winter finches around this year.). Other birders have detected a variety of late warblers around the state (wow, November Chestnut-sided in Falmouth!), and lots of lingering shorebirds – especially in Scarborough Marsh. But as far as the first half of November usually goes, there have been no truly exceptional birds. Looking around the region, we see goodies such as a Calliope Hummingbird in New Hampshire, A Black-chinned Hummingbird in Connecticut, and the usual fun array of rarities in Massachusetts (Scissor-tailed Flycatcher, Yellow-headed Blackbirds, Western Tanager, American Avocet, etc). However, it is an ultra-spiffy adult Ross’s Gull near Montreal that is the real headliner of the fall in the Northeast so far (and yes, I am being tempted to chase this, I have to admit).

So there are some good birds around the region, and no doubt there are some good birds still to find in Maine. Other than a couple of days, it has been fairly temperate to mild all fall, and I can’t help but wonder if birds that arrived in the state through various vagrancy mechanisms (see Chapter 7 of my book, How to Be a Better Birder) have yet to concentrate along the coast as they seek out more favorable microclimates or seasonal food sources. Also, as the season progresses, more rarities turn up at feeding stations as natural food supplies diminish. December rarities, for example, are often discovered at feeders. Two tardy Chipping Sparrows are at our store’s feeders as I type this, by the way; I’m hoping they pick up a clay-colored cousin. A lot of folks are reporting very busy feeders right now, which is a good sign, especially considering the lack of irruptive finches.

The last few days have seen a nice southwesterly flow aloft. Look at Friday’s wind map, for example:

That extensive southwesterly flow early in the month would have surely deposited stuff like Cave Swallows in New England, but I wonder if that window has already closed. A couple of Caves in Connecticut as recently as the 9^th gives me some hope, however. Contrast that map with the more zonal flow that we have seen for much of the month, such as on 11/10:

Although few birds are “blown” out of range, certain winds facilitate the arrival of more vagrants in certain areas than others. And southwesterly winds in late fall are definitely the desired winds here in Maine. With a fairly complex weather system on its way – including some really severe storms in the Midwest – I remain hopeful for some more out-of-range treats. Interesting weather does have the tendency to produce some interesting birding, even without facilitating the arrival of rarities.

At the very least, behind this system, we should see a return to colder, seasonable weather (as opposed to the 50’s of the last two days for example), and this should help push birds to feeders, warmer coastal and urban areas, etc. Also, hopefully it will bring some snowfall to points north, as this year’s Goose Rarity Season has been lackluster, especially in the Greater Yarmouth Goose Fields. A Greater White-fronted Goose that has been in Scarborough for a couple of weeks, and another in Berwick earlier in the month, along with a couple of Cackling Goose reports have been the only geese-of-note in southern Maine. While “The County” saw single Barnacle and Pink-footed Goose in October, I have not had a single “good” goose in the fields of North Yarmouth, Cumberland, and Falmouth all season. A Bean (!!!) Goose, Barnacle, and Pink-footed all in Nova Scotia right now give me plenty of hope, and last year, things really didn’t pick up locally until mid-November anyway. I will continue my thrice-weekly circuit.

So the short version of this is: go birding! There are rarities out there to be discovered.

	TD on 2026 “Next Maine Birds…
	Derek on 2026 “Next Maine Birds…
	TD on This (Two) Week’s Highlights 1…
	TD on 2026 “Next Maine Birds…
	This Week’s Highligh… on 2026 “Next Maine Birds…

Maine Birding Field Notes

Trip Reports, Essays, Rare Bird Reports, and More from Derek Lovitch's and Freeport Wild Bird Supply's birding in Maine and beyond.

Tag Archives: Weather

June 2015 Month in Review

Monhegan Island, May 18-20, 2015.

My February Birding Re-Cap (2/16/15)

Rarity Season-to-date: Nov 7, 2014

On Recent and Upcoming Weather, Vagrant Season, and Recent Great Birding

October Birding in Maine.

A Great May Week of Birding in Review, and Some Predictions for More Feathery Fun.

Three Days of Migration Watching in May -Day and Night.

Biddeford Pool Snowy Owl and Weather Discussion

Rarity Season-to-date in Review