Parker River NWR–Hellcat, Essex, Massachusetts, US

Aug 21, 2026 5:16 PM – 8:16 PM

Protocol: Stationary

Checklist Comments:    Weather: 70°F, Overcast, Calm. 

It was an amazing experience to see the thousands of Tree Swallows go to roost at Hellcat – and – hear Whip-Poor-Will serenade us as we drove off island.♡

40 species

Canada Goose  1

Mallard  5

Mourning Dove  2

Eastern Whip-poor-will  17    Heard singing from Hellcat parking lot and as we drove off island.

Killdeer  5

Semipalmated Plover  125

Short-billed Dowitcher  4

Spotted Sandpiper  3

Solitary Sandpiper  1    Seen feeding and preening on the north side of the dike at Hellcat.

Lesser Yellowlegs  12

Greater Yellowlegs  34

White-rumped Sandpiper  1

Least Sandpiper  5

Semipalmated Sandpiper  40

Ring-billed Gull  1

American Herring Gull  7

Common Tern  8

Double-crested Cormorant  21

Glossy Ibis  3

Yellow-crowned Night Heron  2    Seen sitting on the marsh on the north side of the dike at Hellcat.

Black-crowned Night Heron  1

Snowy Egret  7

Great Egret  11

Great Blue Heron  2

Osprey  1

Northern Harrier  1

Downy Woodpecker  1

Eastern Phoebe  2

Eastern Kingbird  1

Tree Swallow  230000    Thousands upon thousands of swallows coming in to roost at Hellcat.

Purple Martin  24

Barn Swallow  15000    Thousands upon thousands of swallows coming in to roost at Hellcat.

Marsh Wren  1

European Starling  5

Cedar Waxwing  4

Eastern Towhee  1

Brown-headed Cowbird  1    Female cowbird hopping along the dike hunting for insects.

Common Grackle  2

Common Yellowthroat  1

Northern Cardinal  2

View this checklist online at https://ebird.org/checklist/S386814572

News Categories

Upcoming Field Trips

  • Halibut Point State Park, Rockport

    Rockport - Halibut Point State Park Halibut Point State Park, Rockport, MA, United States

    Beginners encouraged. A two-hour walk over easy to moderate trails in search of seasonal specialties. Boots advisable. Co-sponsored by DCR.

  • Westboro Wildlife Management Area

    Westborough - Ball Field Hospital Rd, Westborough, MA, United States

    We will hike the north side of Big Chauncy Pond in search of migrant warblers.

  • Webinar: Introduction to Nocturnal Flight Call (NFC) Recording

    Most birders experience migration through the birds that arrive, depart, or pass overhead by day -- but throughout the night, another migration is unfolding largely out of sight. This presentation will introduce nocturnal flight calls and the recordists who use them to experience and study that hidden movement. We will draw on examples from the [...]

  • Fall migrants at Roslindale Wetlands Urban Park

    Roslindale Wetlands Urban Park 23 Coniston Rd, Roslindale, MA, United States

    A small but mighty urban wild that offers a variety of habitat. Expect to see a variety of woodpeckers, resident birds, warblers, and other migratory species, as well as a surprise or two. The path is flat with a mix of gravel and dirt surfaces with newly added boardwalks on the wetter sections. Boots are [...]

Go to Top