Tag Archives: Red Knot

This Week’s Highlights 10/30 – 11/5/2025.

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This Orange-crowned Warbler was an “expected surprise” as we birded the Rarity Season nooks and crannies of Bailey Island in Harpswell on a Harpswell Heritage Land Trust tour this past Sunday.

What an incredible week of birding in Maine! Rarity Season is off to a roaring start, and notable birds are being reported around the state. As usual, I spent as much time as I could bird-finding. OK, I chased a little, too, because ‘tis the season! While I didn’t add to the list of Megas this week, I encountered a number of notable seasonal observations, especially “late/lingering/pioneering” migrants. Here are my observations of note over the past seven days:

  • 4 Semipalmated Sandpipers, 18 Pectoral Sandpipers, 18+ White-rumped Sandpipers, 12 Semipalmated Plovers, 2 Snow Buntings (first of fall), 1 American Tree Sparrow (FOF), 4 Great Egrets, etc, Eastern Road Trail, Scarborough Marsh, 10/30.
  • 18-21 continuing RED KNOTS, 10 White-rumped Sandpipers, etc, Ferry Beach, Scarborough, 10/30.
  • 1 1st cycle Iceland Gull (first of fall), Trundy Point, Cape Elizabeth, 11/1 (with Bill Thompson).
  • 1 LONG-BILLED DOWITCHER and 1 Lesser Yellowlegs with 14 Greater Yellowlegs, Walsh Preserve, Freeport, 11/1 (with Saturday Morning Birdwalk group).
  • 1 Fox Sparrow (FOF), our property in Durham, 11/1-3.
  • 1 NORTHERN PARULA, 1 ORANGE-CROWNED WARBLER, 1 Blue-headed Vireo, etc, Bailey Island, Harpswell, 11/2 (with Harpswell Heritage Land Trust tour group).
  • 1 continuing MACGILLIVRAY’S WARBLER, Grist Mill Park, Yarmouth, 11/3 (with Jeannette and m.obs). Found on 11/2 by Noah Gibb and Stacey Huth, this western vagrant was typical for members of its genus during migration. In other words, it was wicked hard to photograph, even when it popped out into the open. Over the course of an hour, Jeannette and I enjoyed some fantastic views, but they were all fleeting, and too quick for her camera! It continues through at least today, 11/5.
  • 1 BLACK-THROATED GREEN WARBLER, 11/3, Grist Mill Park, Yarmouth, 11/3. First spotted by Jeannette and I, a few people glimpsed it and then several others independently relocated it later. Interestingly, we saw it fly across the river, almost exactly where we watched the MacGillivray’s cross several hours later. Both happily, came back, suggesting birds are foraging in a wide area here, which suggests the need for patience when seeking the MACW! Two fly-over Evening Grosbeaks there as well were my FOF.
  • 18 Evening Grosbeaks and 2+ Red Crossbills, Florida Lake Park, Freeport, 11/5.

Our Last Tour of 2025 still has some space remaining, speaking of rarity season!

  • Birds on Tap℠ – Roadtrip! Rarity Roundup

​November 9, 2025; 8:00am – 3:00pm

Portland Explorer (formerly Maine Brews Cruise) and Freeport Wild Bird Supply are excited to continue our collaboration for six very special outings in 2025. 

These unique, relaxed birding and beer-ing adventures that you have come to love combine great local birding at seasonal hotspots with visits to sample the delicious creations of some of our favorite local breweries. These tours are a perfect introduction to birding and/or craft beer, and a great opportunity to travel with significant others, friends, and family that have interest in one topic, while your interest is primarily in the other (for now!). Seasonal birding hotspots and great local beer – a perfect combination, and we’ll even do all of the driving!

Early November is a fantastic time of year in Maine for vagrants – birds normally seen in far-off places.  Due to a combination of weather patterns, changing seasonal food resources, falling temperatures, and other factors – some of which are not completely understood – birds that may have ended up in Maine by “accident” begin to concentrate at the coast in “migrant traps” and “hotspots.”  In other words, this is the time of year to expect the unexpected.  

​A traditional “Rarity Roundup” involves teams of birders heading out on a given day during rarity prime time, looking for species that are not supposed to be around. And in honor of that tradition, that’s exactly what we are going to do on this unique tour. We may “chase” a rarity (go to see something that has already been found, aka “twitch”) or we might choose a destination known for rare birds in an attempt to find one of our own. Or perhaps, we’ll do both!

​Anything between Portland and Kittery is fair game, and we might not even know where we will head until we are on the bus and the latest rare bird alert is received. For those who love adding a bird to your Life or State List, and/or basking in the thrill of discovery, well then this is the tour for you! In between seeing great birds, we’ll discuss the complex factors that are involved in delivering rarities to an area, and how we go about finding them.

​After about 3-4 hours of birding, depending on drive time, we will be transported to two of our great local producers to sample their offerings and learn their styles.

Recent Highlights, 9/3 – 9/10/24

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Although not in Maine, this spiffy adult Sabine’s Gull was the icing on the cake of an incredible day in Head Harbor Passage, New Brunswick on 9/4 (with Beth Edmonds, Dan Nickerson, Jeannette, and friends). An impressive concentration of gulls was led by 5,000-8,000 Bonaparte’s Gulls, 5,000 Herring and Great Black-backed Gulls, and also including 20+ Lesser Black-backed Gulls and 20-30 Laughing Gulls (also Ring-billeds and Black-legged Kittiwakes). It was the best concentrations of birds we have experienced here in several years.

With our annual early fall weekend with friends to Washington County, a productive eight days of birding included the following observations of note: 

  • Sandy Point Morning Flight, 9/3: 355 total migrants led by 105 Northern Parulas and 88 Cedar Waxwings, and also including a single BLUE-GRAY GNATCATCHER (Only my 4th morning flight record). Complete tally here.
  • 4 Red-breasted Mergansers, Lubec Bar and Flats, 9/5 (with Beth Edmonds, Dan Nickerson, Jeannette, and friends).
  • 1 adult Lesser Black-backed Gull, Roque Bluffs State Park, 9/6 (with Jeannette).
  • 1 juvenile YELLOW-CROWNED NIGHT-HERON, Jones Creek, Pine Point, Scarborough, 9/10 (with Jeannette).
  • Our Durham property continues to impress during migration. Another week with at least 15 species of warblers detected in the yard, and highlights including Philadelphia Vireo on several days and a Brown Thrasher at our feeders 9/8-9.

Based on the progressing season, and my upcoming schedule, this was the last week I focused on shorebirds. As always, my peak shorebird season culminates with our visit down east. There are plenty of shorebirds left to enjoy (and count), but my final shorebird “high counts” report of the season – including a goodly 20 species this week – is as follows:

  • AMERICAN OYSTERCATCHER: 4 (2 ad with 2 juv), Pine Point, Scarborough, 9/10 (with Jeannette).
  • Black-bellied Plover:  8, Pine Point, 9/10 (with Jeannette).
  • Killdeer: 14, Crystal Spring Farm, Brunswick, 9/8.
  • Semipalmated Plover: 71, Pine Point, 9/10 (with Jeannette).
  • Whimbrel: 3, Lubec Bar and Flats, 9/5 (with Beth Edmonds, Dan Nickerson, Jeannette, and friends).
  • Ruddy Turnstone: 1, Lubec Bar and Flats, 9/5 (with Beth Edmonds, Dan Nickerson, Jeannette, and friends).
  • RED KNOT: 1 juv, Lubec Bar and Flats, 9/5 (with Beth Edmonds, Dan Nickerson, Jeannette, and friends).
  • STILT SANDPIPER: 1 juvenile, Walsh Preserve, Freeport, 9/9.
  • Sanderling: 11, Carrying Place Cove, Lubec, 9/5 (with Jeannette).
  • DUNLIN: 1 juv, Lubec Bar and Flats, 9/5 (with Beth Edmonds, Dan Nickerson, Jeannette, and friends).
  • Least Sandpiper: 150+, Sanborn Cove, Machiasport, 9/3 (with Jeannette).
  • White-rumped Sandpiper: 10+, Sanborn Cove, 9/3 (with Jeannette).
  • Pectoral Sandpiper: 2, Walsh Preserve, 9/9.
  • Semipalmated Sandpiper: 3,000-4,000 (!), Machiasport, 9/3 (with Jeannette). Only 2,000 or so on 9/6 (with Jeannette).
  • WESTERN SANDPIPER: 1 juvenile, Pine Point, 9/10 (with Jeannette).
  • Short-billed Dowitcher: 15, Walsh Preserve, 9/9.
  • Spotted Sandpiper: 2, Pike Lands Preserve, Lubec, 9/5 (with Jeannette).
  • Lesser Yellowlegs: 41, Walsh Preserve, 9/9.
  • “Eastern” Willet: 2, Pine Point, 9/10 (with Jeannette).
  • Greater Yellowlegs: 6, Wharton Point, Brunswick, 9/8.

Recent Highlights, 8/26 – 9/2/24

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Jeannette and I spotted these four Red-necked Phalaropes from the Casco Bay Ferry Mailboat run with visiting family on the 26th.

It was a very busy week for me, but when I did get out, birding was productive – especially in the backyard which hosted at least 15 species of warblers this week. Meanwhile, shorebirding continues to be hot. My observations of note over the past 8 days included the following

  • 1 Black Scoter, 2 White-winged Scoters, and 2 Blue-winged Teal with Common Eiders, Reid State Park, Georgetown, 8/27. As scoters begin to increase in September, I’ll forgo reporting the “oversummering” groups from now on.
  • 1 TRICOLORED HERON, Mill River Park, Thomaston, 8/29 (with Jeannette).
  • 2 SANDHILL CRANES, Mayall Road, Gray/New Gloucester, 8/30.
  • 1 Northern Pintail (first of fall) and 1 juv, Little Blue Heron, etc, Eastern Road Trail, Scarborough Marsh, 8/30.
  • 3 adult Lesser Black-backed Gulls, Seawall Beach, Phippsburg, 9/2 (with Ed Hess).

My shorebird high counts for 18 species this week were solid considering I didn’t make it to Biddeford Pool (or Pine Point) during this period. Focusing on mostly lesser-visited hotspots, I found several goodies and had a few decent high counts.

  • Black-bellied Plover: 67, Wharton Point, Brunswick, 9/2 (with Ed Hess).
  • Killdeer: 43, Colonial Acres Sod Farm, Gorham, 8/30.
  • Semipalmated Plover: 100+, Thomaston Public Landing, 8/29 (with Jeannette).
  • HUDSONIAN GODWIT: 2 adults, Wharton Point, 9/2 (with Ed Hess)
  • Ruddy Turnstone: 1, Reid State Park, Georgetown, 8/27.
  • RED KNOT: 1 juv, Wharton Point, 9/2 (with Ed Hess).
  • Sanderling: 82, Seawall Beach, Phippsburg, 9/2 (with Ed Hess).
  • BAIRD’S SANDPIPER: 1 juv, Seawall Beach, 9/2 (with Ed Hess).
  • Least Sandpiper: 92, Eastern Road Trail, Scarborough Marsh, 8/30.
  • White-rumped Sandpiper: 3, Eastern Road Trail, Scarborough Marsh, 8/30.
  • Pectoral Sandpiper: 3, Eastern Road Trail, Scarborough Marsh, 8/30.
  • Semipalmated Sandpiper: 1500, Thomaston Public Landing, 8/29 (with Jeannette).
  • Short-billed Dowitcher: 16, Walsh Preserve, Freeport, 8/31 (with Saturday Morning Birdwalk group).
  • Spotted Sandpiper: 5, Reid State Park, Georgetown, 8/27.
  • Solitary Sandpiper: 1, several locations this week.
  • Lesser Yellowlegs: 45, Walsh Preserve, Freeport, 8/31 (with Saturday Morning Birdwalk group).
  • Greater Yellowlegs: 24, Walsh Preserve, 8/31 (with Saturday Morning Birdwalk group).
  • RED-NECKED PHALAROPE: 4, Casco Bay between Little Chebeague and Cow Islands from the Casco Bay Lines Mailboat run, 8/26 (with Jeannette).

Recent Highlights, 8/19 – 8/25/2024

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Brandon Baldwin and Kevin Harding found this American White Pelican off Wharton Point in Brunswick on the 24th. My “lunchbreak chase” ended up taking a few extra hours, but it was more than worth it when a small group of us were treated to the bird flying right over our heads at the end of the Maquoit Bay Conservation Land trail. Luckily, it wasn’t any closer when it decided to lighten the load, as caught in action here.

It was an exceptional week of late summer birding. Once again motivated by shorebirds, I ran into quite a few other species of note while working the usual hotspots. My non-shorebird observations of note over the past 7 days included:

  • Common Nighthawks were on the move this week, while some other widespread migrants and frequent visitors to our Durham property included American Redstart and Yellow, Black-and-white, Magnolia, Tennessee and Cape May Warblers.
  • 1 adult Little Blue Heron and 2+ Surf Scoters, Wharton Point, Brunswick, 8/21 (with Anniversary Day Birdwalk group).
  • 2 FORSTER’S TERNS, 2 CASPIAN TERNS, and 1 adult Lesser Black-backed Gull, Hill’s Beach, Biddeford, 8/23 (with Noah Gibb).
  • 1 female LONG-TAILED DUCK and 2 Surf Scoters, Biddeford Pool Beach, Biddeford, 8/23 (with Noah Gibb).
  • 2 continuing adult RED-NECKED GREBES, Ocean Avenue, Biddeford Pool, 8/23 (with Noah Gibb).
  • 1 Blue-gray Gnatcatcher, 2 Cape May Warblers, etc, Old Town House Park, North Yarmouth, 8/24 (with Saturday Morning Birdwalk group).
  • 1 AMERICAN WHITE PELICAN, Wharton Point, Brunswick, 8/24. A State Bird for me, it was found about an hour earlier by Kevin Harding and Brandon Baldwin. After it was displaced by a passing airboat, I arrived at about 12:30 and relocated it on the rocky ledge at the southern end of the bay. Brandon and I cut the distance in more than half by walking out to the end of the Maquoit Bay Conservation Land trail. Although closer, the light was brutal, but a small group of us waiting until the tide had inundated the ledge. Then the pelican took off. First it started heading south, but circled back, passed directly overhead (see photo above) and then gained altitude high over Wharton Point before disappearing off to the north.
  • 26 Surf Scoters, Maquoit Bay Conservation Land Trail, 8/24 (with Brandon Baldwin).

Meanwhile, fueled by a successful 19-species “shorebird mini-Big Day on 8/23 with Noah Gibb, my shorebird high counts for a total of 20 species this week were as follows:

  • AMERICAN OYSTERCATCHER: 2, Little Whaleboat Ledges, Casco Bay, 8/25 (with Birds of Casco Bay Boat Trip tour group).
  • Black-bellied Plover: 150+, The Pool, Biddeford Pool, 8/23 (with Noah Gibb).
  • Killdeer: 26, Crystal Spring Farm, Brunswick, 8/21 (with Anniversary Day Birdwalk grpup).
  • Semipalmated Plover: 400, The Pool, 8/23 (with Noah Gibb).
  • Piping Plover: 1, Hill’s Beach, Biddeford, 8/23 (with Noah Gibb).
  • Ruddy Turnstone: 30, Biddeford Pool Beach, Biddeford, 8/23 (with Noah Gibb).
  • RED KNOT: 1 ad and 1 juv, The Pool, 8/23 (with Noah Gibb).
  • STILT SANDPIPER: 1 continuing adult, Walsh Preserve, Freeport, 8/19 (with Jeannette) and 8/23 (with Noah Gibb).
  • Sanderling: 17, Hill’s Beach, 8/23 (with Noah Gibb).
  • DUNLIN: 1 fresh juvenile (FOY), Biddeford Pool Beach, 8/23 (with Noah Gibb).
  • Least Sandpiper: 100+, The Pool, 8/23 (with Noah Gibb).
  • White-rumped Sandpiper: 6, Biddeford Pool Beach, 8/23 (with Noah Gibb).
  • Semipalmated Sandpiper: 1250, Biddeford Pool Beach, 8/23 (with Noah Gibb).
  • Short-billed Dowitcher: 16, The Pool, 8/23 (with Noah Gibb).
  • LONG-BILLED DOWITCHER: 1 adult, Walsh Preserve, 8/19 (with Jeannette). Photo below.
  • Spotted Sandpiper: 3, Ocean Avenue, 8/23 (with Noah Gibb).
  • Solitary Sandpiper: 2, multiple locations and dates this week.
  • Lesser Yellowlegs: 54, Walsh Preserve, 8/19 (with Jeannette).
  • “Eastern” Willet: 3, The Pool, 8/23 (with Noah Gibb).
  • Greater Yellowlegs: 8, Royal River flats, 8/25 (with Birds of Casco Bay Boat Trip tour group).

An adult LONG-BILLED DOWITCHER was a fun find for Jeannette and I this week at the Walsh Preserve in Freeport. It could have been closer, but this photo shows some of the pertinent identification features in the bird to the right including the larger size and very round shape, hunched back, and uniformly reddish tone throughout much of the undersides.

This Week’s Highlights, 8/26-9/1,2023

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Our Durham yard has been incredibly birdy this week. The most unexpected migrant was this American Bittern that dropped into our new pond for the morning of the 28th.

I didn’t get out to shorebird hotspots as much this week, but still ended up with 17.5 species and some solid high counts. However, much of my best birding this week was from our yard, which apparently is a fantastic fall migration hotspot. And my first visit of the season to Sandy Point on 8/31 produced a new August record!

  • Black-bellied Plover: 142, The Pool, Biddeford Pool, 9/1.
  • Killdeer: 3, United Ag and Turf, Auburn, 8/31 (with Jeannette).
  • Semipalmated Plover: 150+, The Pool, 9/1.
  • Piping Plover: 1, The Pool, 9/1.
  • Whimbrel: 4, The Pool, 9/1.
  • RED KNOT: 16 juv, The Pool, 9/1.
  • Sanderling: 1, The Pool, 9/1.
  • Least Sandpiper: 32, Eastern Road Trail, Scarborough Marsh, 8/31.
  • White-rumped Sandpiper: 11, Wharton Point, Brunswick, 8/28 (with Jeannette).
  • Pectoral Sandpiper: 2, Eastern Road Trail, 8/31.
  • Semipalmated Sandpiper: 450-500, Wharton Point, Brunswick, 8/28 (with Jeannette).
  • Short-billed Dowitcher: 14, The Pool. 9/1.
  • Spotted Sandpiper: 1, Walsh Preserve, 8/26 (with Saturday Morning Birdwalk group).
  • Solitary Sandpiper: 1, Walsh Preserve, 8/26 (with Saturday Morning Birdwalk group).
  • Lesser Yellowlegs: 34, Eastern Road Trail, 8/31.
  • “Eastern” Willet: 6, The Pool, 9/1.
  • “WESTERN” WILLET: 1-2 juv, The Pool, 9/1.
  • Greater Yellowlegs: 28, Walsh Preserve, 8/26 (with Saturday Morning Birdwalk group).

A handful of non-shorebird highlights this week also included:

  • A productive week of birding on our Durham property produced a number of highlights. In fact, most mornings, it was hard to pull myself away from the yard. At least 11 species of warblers have been in our yard daily this week, with a high count of 12 on the 28th. A female MOURNING WARBLER was present 8/27-8/29. A Phildelphia Vireo on the 28th-29th was our 144th yard bird, followed moments later by the arrival of #145: An American Bittern (photo above). A DICKCISSEL (FOF) briefly paused in the yard on the morning of the 1st for our 146th yard bird! 32-38 Common Nighthawks were feeding over the yard late in the day on 9/1 as well.
  • 12 adult SANDHILL CRANES, Mayall Road, Gray/New Gloucester, 8/30 (site high count and noteworthy that no juveniles were present – failed breeding season due to high water and flooding?)
  • Sandy Point Morning Flight, 8/31 (FOY):
    • 6:00-9:15am
    • 57F, mostly clear, NE 4.7-7.6 increasing to 7.3-9.8 and gusty.
Unidentified633Scarlet Tanager2
American Redstart439Ruby-throated Hummingbird2
Northern Parula195Black-throated Blue Warbler2
Yellow Warbler51Rose-breasted Grosbeak1
Magnolia Warbler35Eastern Phoebe1
Cape May Warbler20Chestnut-sided Warbler1
Black-and-white Warbler17Merlin 1
Black-throated Green Warbler16Northern Waterthrush1
Red-eyed Vireo11Swainson’s Thrush1
Bay-breasted Warbler10Unidentified vireo1
Tennessee Warbler5Olive-sided Flycatcher1
Nashville Warbler4Common YellowthroatX
Least Flycatcher4
Blackburnian Warbler3TOTAL1,463*
Canada Warbler3*New August High Count!
American Goldfinch3
Red-winged Blackbird3

This Week’s Highlights, 8/19-25,2023

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This juvenile Marbled Godwit continues at Hill’s Beach in Biddeford, making a nice addition to my “Shorebird Big Day” effort on Tuesday.

After being thwarted by weather on a couple of days recently, I conducted a “Shorebird Big Day” on Tuesday the 22nd. I birded between Sanford and Brunswick, seeking shorebirds from near-dawn to dusk. My goal was “at least 20” species of shorebirds, so I was happy to finish my day with 22 species.  Needless to say, that day dedicated to shorebirding produced the majority of my high counts this week:

  • AMERICAN OYSTERCATCHER: 6 adults, Ocean Avenue, Biddeford Pool, 8/22 (with Luke Seitz).
  • Black-bellied Plover: 126, Wharton Point, Brunswick, 8/22.
  • Killdeer: 17, Winding Brook Turf Farm, Alfred, 8/22.
  • Semipalmated Plover: 220, Pine Point, Scarborough, 8/20.
  • Piping Plover: 3, Hill’s Beach, Biddeford, 8/22 (with Luke Seitz).
  • Whimbrel: 3, Hill’s Beach/The Pool, 8/22 (with Luke Seitz).
  • Ruddy Turnstone: 6, Ocean Avenue, 8/22 (with Luke Seitz). One at Sanford Lagoons on 8/22 was quite out of place inland.
  • RED KNOT: 1 juv, Hill’s Beach, 8/22 (with Luke Seitz).
  • STILT SANDPIPER: 4 (2 ad, 2 juv), Sanford Lagoons, Sanford, 8/22.
  • Sanderling: 22, Hill’s Beach, 8/22 (with Luke Seitz).
  • BAIRD’S SANDPIPER: 1-2, Hill’s Beach, 8/22 (with Luke Seitz).
  • Least Sandpiper: 36, Eastern Road Trail, Scarborough Marsh, 8/20.
  • White-rumped Sandpiper: 8, Biddeford Pool Beach, 8/22 (with Luke Seitz).
  • Pectoral Sandpiper: 3, Sanford Lagoons, 8/22.
  • Semipalmated Sandpiper: 600, Biddeford Pool Beach, 8/22 (with Luke Seitz).
  • Short-billed Dowitcher: 51, Pine Point, Scarborough, 8/20.
  • Spotted Sandpiper: 4, Ocean Avenue, 8/22 (with Luke Seitz).
  • Solitary Sandpiper: 8, Sanford Lagoons, 8/22.
  • Lesser Yellowlegs: 83, Walsh Preserve, Yarmouth, 8/22.
  • “Eastern” Willet: 19, Pine Point, 8/20.
  • Greater Yellowlegs: 24, Walsh Preserve, 8/22.

A nice list of non-shorebird highlights this week also included:

  • At least 12 species of warblers have been in our yard daily this week, with a high count of 15 on the 24th. A Tennessee Warbler that I spotted while conducting our Bird Safe Open House birdwalk on the 19th was our 141st yard species.
  • Common Nighthawks have been on the move all week, with nightly sightings. My high counts included 16 over the Bates Mill in Lewiston on the 19th (with Dan and Renee Klem) and 244 in an hour over Wharton Point in Brunswick on the 23rd.
  • 1 continuing proposed TRICOLORED HERON X SNOWY EGRET X SMALL WHITE EGRET SP(P) HYBRID, Eastern Road Trail, Scarborough marsh, 8/20.
  • 3 BLUE-GRAY GNATCATCHER, Green Point WMA, Dresden, 8/21 (with Jeannette).
  • 1 ad. Lesser Black-backed Gull, Hill’s Beach, 8/22 (with Luke Seitz)
  • Continuing mid-summer scoter Hat Trick off Biddeford Pool Beach, 8/22 (with Luke Seitz): 2 White-winged Scoter, 2+ Surf Scoters, 75-100 Black Scoters.
  • 2 continuing adult RED-NECKED GREBES, Ocean Avenue, Biddeford Pool, 8/22 (with Luke Seitz).
  • 2 adult SANDHILL CRANES, Mayall Road, Gray/New Gloucester, 8/22.
  • 3 Great Egrets, southbound over the store on 8/24 during our Paul Doiron & Ron Joseph Maine Authors event. Yard Bird #134!

This Week’s Highlights, 5/20 to 5/25, 2023

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This reported Little Blue Heron x Snowy Egret Hybrid in Spurwink Marsh of Cape Elizabeth may add to the mix of ultra-rare hybrid herons that have been occurring annually since 2012 in the Greater Scarborough Marsh area. Or does it? See below.

The last cadre of migrants are arriving, and the late spring “rarity season” is now upon us. With new arrivals, breeding birds on territory, and the expectation of the unexpected, it was a great week of birding for me as I head out to Monhegan Island with our annual tour group.

My observations of note over the past seven days included:

  • 1 continuing reported LITTLE BLUE HERON X SNOWY EGRET HYBRID, Spurwink Marsh, Cape Elizabeth, 5/22 (with Jeannette, et al). Present since 5/16, this would be the first record of this hybrid combination in Maine, and one of the few ever. Or, is this just a funky 1st or second summer Little Blue Heron that is showing oddly dark legs? Plus if it is truly a hybrid with a small white heron, I am not sure how we would rule out Little Egret (or a hybrid that includes Little Egret) as the other half of the mix, especially with the long-ish-looking dual wiry plumes. Furthermore, some folks have raised doubts about even the potential of mixed parentage here. While clearly different from the TRICOLORED HERON X SMALL WHITE EGRET SPP hybrids that have been in Scarborough Marsh since 2012, I hypothesized about the possibility of Little Blue joining the mix(es) in my 2021 article in North American Birds. I saw the bird again on the 23rd with clients, and obtained better photos than the evening before. Unless of course, my fascination with the hybrid herons of Maine is clouding my judgement here? (Edited for clarity and for minimizing definitives*)

The bicolored bill and blue-gray lores looks fine for Little Blue Heron, but the bill seems a little longer and thinner. The two wiry plumes on the back of the head also look longer and wispier than a Little Blue – could it suggest that the small white egret that’s 50% of its blood (we think) is actually a Little Egret…or the Little Egret x Snowy Egret hybrid…or…

The extra bushy plumes suggestive of Snowy is evident here, and are the soles of the feet a little yellowish? Other photos show the blakcish legs better than this, and 1st summer Little Blue Heron should have uniformly yellow-green legs, especially if still this white.

Also very Snowy/Little-like are the bushy plumes on the foreneck. When it shook, I also observed some whispy white plumes on the back…neither of these should be so fluffy and obvious in a pure Little Blue Heron, especially in its first summer.

***5/26 am edits: The more I think about and study this bird, the less sure I am. It bothers me that the lores and bill are spot on for a Little Blue. But would color develop further when in high breeding, which it won’t reach until next year? Could this just be a super-shaggy-looking Little Blue? Howver, the legs are black or blackish, which is not a characteristic of Little Blue Heron at any age. There seem to be too many anomolous features here to dismiss it as just another splotchy 1st-summer Little Blue. Perhaps, as the summer goes on, and more adult-like characteristics develop, a true pattern and its presumptive ID will become apparent. Hope it sticks around in the same area!**

  • 1 BLACK-NECKED STILT, Eastern Road Trail, Scarborough Marsh, 5/23 (with clients from Maine and Idaho). First spotted by one of my clients as we were split up and scanning both sides of the marsh for sharp-tailed sparrow activity. Awesome find, Ralph! Here’s a lousy, one-armed phone-scoped photo of the bird in the distance.
  • 1 Blue-gray Gnatcatcher, Garcelon Bog Preserve, Lewiston, 5/25.

With the advancement of the season, my personal “FOY’s” this week were limited, as expected in late May, but many of our latest-arriving breeders are showing up on territory now.

  • 1 Alder Flycatcher, Long Reach Preserve, Harpswell, 5/21 (with Harpswell Heritage Land Trust tour group).
  • 1 MOURNING WARBLER, Long Reach Preserve, 5/21 (with Harpswell Heritage Land Trust tour group).
  • 1 Eastern Wood-Pewee, our property in Durham, 5/22.
  • 1 Common Nighthawk, over Bayside neighborhood of Portland, 5/22 (with Jeannette).
  • 3+ Saltmarsh Sparrows, Scarborough Marsh, 5/23 (with clients from Maine and Idaho).
  • 2+ Nelson’s Sparrows, Scarborough Marsh, 5/23 (with clients from Maine and Idaho).
  • 7 RED KNOTS, Pine Point, Scarborough, 5/23 (with clients from Maine and Idaho).
  • 3 Short-billed Dowitchers, Pine Point, 5/23 (with clients from Maine and Idaho).

TOURS AND EVENTS:

Biddeford in Shorebird Season

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“Shorebird Season” is in full swing, and the greater Biddeford Pool area is one of the best places in the state to observe and study shorebirds.  Although numbers usually pale in comparison to the Lubec Flats and Scarborough Marsh, and diversity usually lags well behind the latter as well, the area often provides some of the best opportunities to study shorebirds, between Ocean Avenue and Biddeford Pool beach on the high tide, and Hill’s Beach at low tide.

Today, Phil McCormack and I birded the area thoroughly, beginning with viewing of the extensive mudflats of The Pool itself.  Birds were already well dispersed by the time we arrived this morning, so it was a challenge to really study and sort through the masses, but our tally was as follows:
196 Short-billed Dowitchers
~75 Semipalmated Sandpipers
57 “Eastern” Willets (plus one distant bird that may have been a “Western”)
~ 20 Black-bellied Plovers
~10 Semipalmated Plovers
4 Whimbrels (first of fall for me)
4 Least Sandpipers
2 Greater Yellowlegs
1 Lesser Yellowlegs
1 Ruddy Turnstone

At dead low, Biddeford Pool Beach was shorebird-free (which is often the case, as birds take advantage of the ephemeral mud and sand flats of The Pool and Hill’s Beach), but as we birded the neighborhood and Ocean Avenue, we picked up a few birds of note, led by 2 breeding-plumaged Red-necked Grebes.  Three Black-crowned Night-Herons and a few migrant passerines such as two Eastern Kingbirds and an Indigo Bunting were also noted.

As the tide began to turn, we headed over to Hill’s Beach, and hit it perfectly!  Here, the rapidly approaching water pushed birds towards us, and concentrated them in the highest spots for last-minute feeding.  We were able to carefully and critically sort through each individual, checking for rarities and studying variation.  Our effort turned up a few “good” birds, led by a trio of “Hendersonii” Short-billed Dowitchers (the prairie subspecies), a fairly-rare-but-regular stray to Maine.

The third bird we found, was the brightest of the lot, and was very obvious with its rufous coloration throughout its underparts.
HendersoniiSBDO1,HillsBeach,7-28-13_edited-1 HendersoniiSBDO1a,HillsBeach,7-28-13_edited-1
 (Phone-scoped Photos)

The other two were quite a bit paler, so were a little tougher to tease out.   I managed a crummy photo of one of them.
HendersoniiSBDO2,HillsBeach,7-28-13_edited-1
(Phone-scoped Photo).

Another highlight was a single adult Stilt Sandpiper, along with an adult Red Knot.  The complete tally was as follows:
119 Semipalmated Sandpipers
114 Short-billed Dowitchers (ssp griseus)
6 Black-bellied Plovers
3 SHORT-BILLED DOWITCHERS (ssp HENDERSONII)
2 Ruddy Turnstones
2 Sanderlings
2 Least Sandpipers
1 STILT SANDPIPER
1 Red Knot

So if the shorebird show was quite good, the tern show was simply great.  At least a hundred Common Terns, including many begging juveniles were present, along with at least 30 Roseate Terns.  A few Least Terns also joined the fray, including this adult standing watch on its fledgling.
LETEwFL,HillsBeach,7-28-13_edited-1
(Phone-scoped photo).