Monthly Archives: August 2025

This Week’s (Plus) Highlights and Shorebird High Counts, 8/19 – 8/28/2025

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For the last 13 summers now, hybrid herons have occurred in Scarborough Marsh, with one individual continuing this summer. Likely also present last summer, this bird is significantly darker on the neck and back than the only bird present from about 2021 to 2023, possibly suggesting yet another backcross (Gen 4?) with Tricolored Heron (especially when observed with its breeding plumes earlier in the summer). It does appear quite similar to my proposed 2nd or 3erd generation Tricolored Heron x Snowy Egret x Little Egret that was present from 2016 to at least 2020, so it could possibly by the same bird (Labeled 3A in my article Hybrid Herons of Maine from my North American Birds article in 2021, Volume 72, Number 3. At this point, I believe the hybrids are best described as “Tricolored Heron x small white Egretta species,” or, “Patches” as I dubbed it and most birders refer to it now. Whatever it is, this year’s individual cooperated for me along the Eastern Road Trail on the 26th.

It was another busy period for me, with most of my mornings spent only birding our property before work. Luckily, the yard has been fantastic as it turns out to be this time of year, with a nice variety of migrants, and lots of local breeders fattening up on our plentiful Black Cherry trees. Some of the migrants detected this week included a Prairie Warbler on 8/19, a Swainson’s Thrush on 8/20, Canada Warbler on 8/21, Cape May Warbler 8/24-25, a single Common Nighthawk at dusk on 8/26, and a BLUE-GRAY GNATCATCHER on 8/27.

Otherwise, it was a weekend trip to Bar Harbor and a shorebird little-big day on the 26th that kept me going, with the following observations of note over the past 10 days.

  • 1 continuing COMMON GALLINULE, Essex Marsh, Bangor, 8/22 (with Bill Thompson).
  • The big adventure this week was the 12-hour pelagic/whale watch out of Bar Harbor with Flukes and Bar Harbor Whale Watch Co to Cashes Ledge in the Gulf of Maine. I’ll leave the complete checklist to others, but my highlights from the trip were the total of 33* Leach’s Storm-Petrels, repeated great view of a total of 15* Pomarine Jaegers, the feeding frenzy of Wilson’s Storm-Petrels (day total of 1,573*) at Ammen Ledge, and the scattered flocks of Red-necked Phalaropes.

Pomarine Jaeger (above) and Great Shearwater (below)

  • 2 Horned Grebes (oversummering or really early?) and 2 Red Crossbills, Hollingsworth Trail, Petit Manan NWR, Steuben, 8/24 (with Bill Thompson).
  • 2 FORSTER’S TERNS, The Pool, Biddeford Pool, 8/26.
  • 2-3 continuing adult RED-NECKED GREBES, Ocean Avenue, Biddeford Pool, 8/26.
  • 1 continuing postulated TRICOLORED HERON X SMALL WHITE EGRETTA SPP, aka “Patches,” Eastern Road Trail, Scarborough Marsh, 8/26. Photo and notes above.

Fueled by a 19 shorebird species day on the 26th, I tallied 22 species of shorebirds this week, with my high counts over these past 10 days (see last week’s post for explanation) being the following:

  • American Oystercatcher: 7 (4 ad, 3 juv), Hill’s Beach, Biddeford, 8/26 (with Noah Gibb and Stacey Huth).
  • Black-bellied Plover: 156, The Pool, Biddeford Pool, 8/26.
  • Killdeer: 46, Crystal Spring Farm, Brunswick, 8/25.
  • Semipalmated Plover: 150+, Eastern Road Trail, Scarborough Marsh, 8/26.
  • Piping Plover: 15, Hill’s Beach, Biddeford, 8/26 (With Noah Gibb and Stacey Huth).
  • Whimbrel: 2, The Pool, 8/26.
  • Ruddy Turnstone: 12*, Mt Desert Rock via Cashes Ledge boat trip, 8/23.
  • Red Knot: 8, The Pool, 8/26 and 3, Wharton Point, Brunswick, 8/25.
  • Sanderling: 5, Hill’s Beach, 8/26.
  • Dunlin: 1 adult, Wharton Point, 8/25 (early).
  • Least Sandpiper: 98, Eastern Road Trail, 8/26.
  • White-rumped Sandpiper: 10+, The Pool, 8/26.
  • Pectoral Sandpiper: 2, Eastern Road Trail, 8/26.
  • Semipalmated Sandpiper: 512, Wharton Point, 8/25.
  • Short-billed Dowitcher: 18, Hill’s Beach, 8/26.
  • Spotted Sandpiper: 2, Ocean Ave, Biddeford Pool, 8/26.
  • Solitary Sandpiper: 1, Rte 136, Durham, 8/26.
  • Lesser Yellowlegs: 19, Eastern Road Trail, 8/26.
  • “Eastern” Willet: 8, The Pool, 8/26.
  • Greater Yellowlegs: 41, Wharton Point, 8/25.
  • RED-NECKED PHALAROPE: 218*, Cashes Ledge boat trip, 8/23.
  • RED PHALAROPE: 1* but I had at least 3 more, Cash’s Ledge boat trip, 8/23.

*Official trip tallies kept by others, although my personal numbers would likely have been similar.

This Week’s Highlights and Shorebird High Counts, 8/9 – 8/18/2025

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Suspected of breeding in 2022 and confirmed in 2023, a pair of American Oystercatchers has now nested annual on the tiny Upper Green Islands way up in Casco Bay off Yarmouth. On the 17th, our annual shorebird-focuses Birds of Casco Bay with Seacoast Tours collaboration documented a pair of adults with a juvenile once again. Since we discovered them on this tour in 2022, it’s been exciting to visit them each summer. Who would have thought this tiny island and ledge could support one of only a dozen or so pairs in the entire state?
Full trip report here.

Two birdwalks, two shorebird-centric tours, and two whale-watches made for a very nice, diverse array of observations of note for me over the last 10 days (see note in shorebird high counts):

  • 3 Long-tailed Ducks (2 continuing from previous week), Simpson’s Point, Brunswick, 8/9 (with Saturday Morning Birdwalk group).
  • 1 Bonaparte’s Gull and 6 Great Egrets, Sabattus Pond, 8/11 (with Jeannette).
We checked the underwing patterns of every Cory’s Shearwater we could.
  • 8/12 afternoon Puffin/Whale Combo cruise with Cap’n Fish’s Cruises out of Boothbay Harbor: 5 American Oystercatchers at Eastern Egg Rock. Offshore of EER = 104 Wilson’s Storm-Petrels,  6 Cory’s Shearwaters, 3 Great Shearwaters, 2 Northern Gannets, 1 MANX SHEARWATER.
  • 1-2+ Red Crossbills, Popham Beach State Park, Phippsburg, 8/14.
  • 1 molting adult Bay-breasted Warbler (more evidence of a limited molt-migration in Boreal birds to the southern coastal plain), Old Town House Park, North Yarmouth, 8/16 (with Saturday Morning Birdwalk group).

For my “shorebird high counts,” I prefer to visit at least one of each: high tide hotspot, low tide spot, “grasspiper spot,” and a freshwater location, and it must include a visit to local hotspots Wharton Point and the Walsh Preserve as I attempt to make these comparisons comparable week-to-week and year-to-year, which, for my own notes if nothing else, is why I put these together (but hope you find them of value, too). Just due to life and scheduling, it now often takes me more than a week to hit all of these “requirements,” so I am going to try and do every 10 days instead of weekly. Therefore, here are my high counts over these past 10 days:

  • American Oystercatcher: 5, Eastern Egg Rock, 8/12 (via Cap’n Fish’s Cruises Puffin/Whale combo trip). Plus 3 (2 ad with 1 juv), Upper Green Island, 8/17 (with Birds of Casco Bay with Seacoast Tours tour group). Photo above
  • Black-bellied Plover: 163, The Pool, Biddeford Pool, 8/18 (with Down East Adventures Shorebird Workshop group).
  • Killdeer: 13, Crystal Spring Farm, Brunswick, 8/9 (with Saturday Morning Birdwalk group).
  • Semipalmated Plover: 300+, The Pool, 8/18 (with Down East Adventures Shorebird Workshop group).
  • Piping Plover: 13, Popham Beach State Park, 8/14.
  • Ruddy Turnstone: 3, multiple locations this week.
  • Sanderling: 20, Popham Beach State Park, 8/14.
  • 1, Popham Beach State Park, 8/14 and 1 at Great Pond, Biddeford Pool, 8/18 (with Down East Adventures Shorebird Workshop group).
  • Least Sandpiper: 42, Sabattus Pond, 8/11 (with Jeannette).
  • White-rumped Sandpiper: 15, Hill’s Beach, Biddeford, 8/18 (with Down East Adventures Shorebird Workshop group).
  • Semipalmated Sandpiper: 1600, The Pool, 8/18 (with Down East Adventures Shorebird Workshop group).
  • Short-billed Dowitcher: 40, The Pool, 8/18 (with Down East Adventures Shorebird Workshop group).
  • Spotted Sandpiper: 4, Sabattus Pond, 8/11 (with Jeannette).
  • Lesser Yellowlegs: 66, Royal River, Yarmouth, 8/17 (with Birds of Casco Bay with Seacoast Tours tour group).
  • “Eastern” Willet: 24, Pine Point, Scarborough, 8/18 (with Down East Adventures Shorebird Workshop group).
  • “WESTERN” WILLET: 1 (FOY), Pine Point, 8/18 (with Down East Adventures Shorebird Workshop group).
  • Greater Yellowlegs: 22, Wharton Point, Brunswick, 8/9 (with Saturday Morning Birdwalk group).
Just including this Wilson’s Storm-Petrel photo here because it is incredible. Nice job, Bill!

This Week’s Highlights and Shorebird High Counts, 7/28 – 8/8/2025

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One of two Baird’s Sandpipers that were in the salt pannes of the Eastern Road Trail through Scarborough Marsh on the 7th, it was one of an estimated 3500+ shorebirds present that day. Low water conditions are currently ideal, but they are drying out fast, and without some rain in the next week, this hotspot might just become too dry to hold many birds.  

With a busy few days of catching up, my birding was limited immediately upon our return from our summer vacation. However, I made up for it this week with a couple of tours and two birding outings with friends. There is a surprising number and quality of summertime rarities around the state right now, but I stayed fairly local and tried to find my own rare shorebird or two! Here are my observations of note over the past 12 days here in Maine.

  • A vocal Yellow-billed Cuckoo continues daily in our yard all week.
  • 1 Great Egret, flying over downtown Waterville at dusk, 7/28 (with Jeannette).
  • 2 Long-tailed Ducks, Simpson’s Point, Brunswick, 8/1.
  • 1 TRICOLORED HERON (FOY), Pelreco Marsh, Scarborough Marsh, 8/3 (with Birds on Tap – Roadtrip! Tour Group). Photo in trip report here.
  • 3 adult RED-NECKED GREBES, 1 White-winged Scoter, and 1 Black Scoter, Ocean Avenue-Biddeford Pool Beach, Biddeford, 8/5 (with Bill Thompson)
  • 1 female PURPLE MARTIN, Timber Point, Biddeford, 8/5 (with Bill Thompson). Confirmed breeding as it entered a powerline visual marker ball with food and exited with a fecal sac!
  • PATCHES! Perhaps Patches the IVth? Presumed TRICOLORED HERON X SNOWY EGRET X LITTLE EGRET HYBRID that now may be a fourth-generation bird that’s a backcross again with a TRICOLORED HERON as this year’s bird has significantly more bluish color than previous years, and in all the right places for a Tricolored. In other words, “Tricolored Heron x Small White Egretta SPP”, or, “Patches.” But the hybrid heron was in the salt pannes of the Eastern Road Trail on 8/7 (with Ian Doherty). My phone-scoped photos in the heat shimmer don’t do it justice!
  • 7 Bonaparte’s Gulls, Sabattus Pond, 8/8.

And as expected for the season, shorebird migration is now in full swing and that was the focus of my birding attention, resulting in a solid 21 species. Here were my high counts over these past 12 days:

  • American Oystercatcher: 7 (4 ad, 3 juv), Hill’s Beach, Biddeford, 8/5 (with Bill Thompson).
  • Black-bellied Plover: 60+, The Pool, Biddeford Pool, 8/5 (with Bill Thompson).
  • Killdeer: 11, Sabattus Pond, 8/8.
  • Semipalmated Plover: 375, Hill’s Beach, 8/5 (with Bill Thompson).
  • Whimbrel: 3, Pine Point, Scarborough, 8/3 (with Birds on Tap – Roadtrip! Tour Group).
  • Ruddy Turnstone: 5, Ocean Avenue, Biddeford Pool, 8/5 (with Bill Thompson).
  • Red Knot (FOF): 1 ad, Hill’s Beach, 8/5 (with Bill Thompson).
  • Sanderling: 2, Hill’s Beach, Biddeford, 8/5 (with Bill Thompson).
  • BAIRD’S SANDPIPER (FOY): 2, Eastern Road Trail Scarborough Marsh, 8/7 (with Ian Doherty). Photo above.
  • Least Sandpiper: 350+, Eastern Road Trail, Scarborough Marsh, 8/7 (with Ian Doherty).
  • White-rumped Sandpiper: 75+ (wow! Great count!), Eastern Road Trail, 8/7 (with Ian Doherty).
  • Pectoral Sandpiper: 1, Eastern Road Trail, 8/7 (with Ian Doherty).
  • Semipalmated Sandpiper: Incredible concentration of 2750-3000+ at Eastern Road Trail, 8/7 (with Ian Doherty), but an honorable mention of 2500+ at Pine Point, Scarborough, 8/3 (with Birds on Tap – Roadtrip! Tour Group).
  • WESTERN SANDPIPER (FOY): 1 ad, Eastern Road Trail, 8/7 (with Ian Doherty).
  • Short-billed Dowitcher: 58, Hill’s Beach, 8/5 (with Bill Thompson).
  • American Woodcock: 2, our property in Durham, 8/1.
  • Spotted Sandpiper: 2, several locations this week.
  • Solitary Sandpiper: 1, Moosehorn NWR – Baring Division, 7/28 (with Jeannette) and Sabattus Pond, 8/8.
  • Lesser Yellowlegs: 104, Walsh Preserve, Freeport, 8/2 (with Saturday Morning Birdwalk group).
  • “Eastern” Willet: 22, The Pool, Biddeford, 8/5 (with Bill Thompson).
  • Greater Yellowlegs: 12, Wharton Point, Brunswick, 8/1.

UPCOMING TOURS w/ Space Available:

Shorebird Workshop with Down East Adventures, August 18th, 8:00am to 4:00pm.