BirdAnalyst
Bird Conservation Region 30

New England / Mid-Atlantic Coast

An ecological region spanning Connecticut, Delaware, Maine, Maryland, Massachusetts, New-hampshire, New-jersey, New-york, Rhode-island, Virginia, with 164 survey routes. BCRs are the natural unit for bird trends.

What Is Moving HereNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Northern Bobwhite has collapsed in New England / Mid-Atlantic Coast: down 98% on the route-weighted index since 1968.

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Canada Goose has surged in New England / Mid-Atlantic Coast: up 50× on the route-weighted index since 1968.

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Ring-necked Pheasant has collapsed in New England / Mid-Atlantic Coast: down 98% on the route-weighted index since 1968.

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

House Finch has surged in New England / Mid-Atlantic Coast: up 22× on the route-weighted index since 1968.

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

White-throated Sparrow has collapsed in New England / Mid-Atlantic Coast: down 97% on the route-weighted index since 1968.

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Pileated Woodpecker has surged in New England / Mid-Atlantic Coast: up 18× on the route-weighted index since 1968.

How Guilds Are FaringGuild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology →

-93%

Game birds

4 species
-69%

Grassland birds

9 species
-56%

Generalists

11 species
-27%

Wetland birds

35 species
-6%

Shorebirds

6 species
-3%

Aerial insectivores

18 species
+32%

Forest birds

77 species
+266%

Waterfowl

9 species
+329%

Birds of prey

14 species

Survey Routes

Species By FamilyTrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →

Hawks, Eagles & Kites Accipitridae

Bald Eagle 68×Broad-winged Hawk +50%Cooper's Hawk 14×Northern Harrier -66%Red-shouldered Hawk +773%Red-tailed Hawk +574%Sharp-shinned Hawk -18%

Larks Alaudidae

Horned Lark -56%

Kingfishers Alcedinidae

Belted Kingfisher -57%

Ducks, Geese & Waterfowl Anatidae

American Black Duck -79%Blue-winged Teal -13%Canada Goose 50×Common Merganser -60%Gadwall -67%Hooded Merganser -56%Mallard -10%Mute Swan +1%Wood Duck +266%

Swifts Apodidae

Chimney Swift -40%

Herons, Egrets & Bitterns Ardeidae

American Bittern -84%Black-crowned Night Heron -74%Great Blue Heron +220%Great Egret +135%Green Heron -47%Least Bittern +165%Little Blue Heron -52%Snowy Egret +161%Tricolored Heron -39%Western Cattle-Egret -89%Yellow-crowned Night Heron +38%

Waxwings Bombycillidae

Cedar Waxwing +740%

Nightjars & Nighthawks Caprimulgidae

Chuck-will's-widow -19%Common Nighthawk -67%Eastern Whip-poor-will -90%

Cardinals & Grosbeaks Cardinalidae

Blue Grosbeak +213%Dickcissel +18%Indigo Bunting +8%Northern Cardinal +58%Rose-breasted Grosbeak -40%Scarlet Tanager -35%Summer Tanager +310%

New World Vultures Cathartidae

Black Vulture 67×Turkey Vulture +290%

Treecreepers Certhiidae

Brown Creeper +371%

Plovers & Lapwings Charadriidae

Killdeer +24%

Pigeons & Doves Columbidae

Mourning Dove +33%Rock Pigeon -71%

Crows, Jays & Magpies Corvidae

American Crow +1%Blue Jay -52%Common Raven 23×Fish Crow +190%

Cuckoos, Roadrunners & Anis Cuculidae

Black-billed Cuckoo -88%Yellow-billed Cuckoo -26%

Falcons & Caracaras Falconidae

American Kestrel -86%

Finches Fringillidae

American Goldfinch +124%House Finch 22×Purple Finch -88%

Loons Gaviidae

Common Loon +188%

Oystercatchers Haematopodidae

American Oystercatcher -21%

Swallows & Martins Hirundinidae

Bank Swallow -74%Barn Swallow -35%Cliff Swallow +24%Northern Rough-winged Swallow +22%Purple Martin +94%Tree Swallow +17%

Blackbirds & Orioles Icteridae

Baltimore Oriole -55%Boat-tailed Grackle -5%Bobolink -78%Brown-headed Cowbird +54%Common Grackle -74%Eastern Meadowlark -92%Orchard Oriole +50%Red-winged Blackbird -41%

Yellow-breasted Chat Icteriidae

Yellow-breasted Chat -65%

Gulls, Terns & Skimmers Laridae

Black Skimmer -30%Caspian Tern +6%Common Tern -96%Forster's Tern +276%Great Black-backed Gull +137%Herring Gull -16%Laughing Gull +4%Least Tern -60%Ring-billed Gull -81%Royal Tern -54%

Mockingbirds & Thrashers Mimidae

Brown Thrasher -61%Gray Catbird +61%Northern Mockingbird -50%

New World Quail Odontophoridae

Northern Bobwhite -98%

Osprey Pandionidae

Osprey +995%

Chickadees & Titmice Paridae

Black-capped Chickadee +68%Carolina Chickadee +64%Tufted Titmouse +168%

Wood-Warblers Parulidae

American Redstart +106%Black-and-white Warbler -3%Black-throated Blue Warbler +42%Black-throated Green Warbler -25%Blackburnian Warbler +61%Blue-winged Warbler -49%Canada Warbler -90%Cerulean Warbler +28%Chestnut-sided Warbler -41%Common Yellowthroat -14%Golden-winged Warbler -53%Hooded Warbler +209%Kentucky Warbler -80%Louisiana Waterthrush +194%Magnolia Warbler -6%Nashville Warbler -75%Northern Parula +184%Northern Waterthrush +47%Ovenbird +144%Pine Warbler +421%Prairie Warbler -43%Prothonotary Warbler +150%Worm-eating Warbler +547%Yellow Warbler +98%Yellow-throated Warbler +756%

New World Sparrows Passerellidae

Chipping Sparrow +54%Eastern Towhee -78%Field Sparrow -83%Grasshopper Sparrow -42%Saltmarsh Sparrow -68%Savannah Sparrow -33%Seaside Sparrow +116%Song Sparrow +3%Swamp Sparrow +3%Vesper Sparrow -97%White-throated Sparrow -98%

Old World Sparrows Passeridae

House Sparrow -76%

Cormorants Phalacrocoracidae

Double-crested Cormorant 25×

Pheasants, Grouse & Turkeys Phasianidae

Ring-necked Pheasant -98%Ruffed Grouse -85%Wild Turkey 94×

Woodpeckers Picidae

Downy Woodpecker +51%Hairy Woodpecker +67%Pileated Woodpecker 18×Red-bellied Woodpecker +104%Red-headed Woodpecker 37×Yellow-bellied Sapsucker 14×

Grebes Podicipedidae

Pied-billed Grebe -33%

Gnatcatchers Polioptilidae

Blue-gray Gnatcatcher +630%

Rails, Gallinules & Coots Rallidae

Clapper Rail +399%Common Gallinule +46%King Rail +117%Virginia Rail +103%

Avocets & Stilts Recurvirostridae

Black-necked Stilt -35%

Kinglets Regulidae

Golden-crowned Kinglet +195%

Sandpipers & Allies Scolopacidae

American Woodcock -81%Spotted Sandpiper +2%Upland Sandpiper -55%Willet -19%

Nuthatches Sittidae

Brown-headed Nuthatch +246%Red-breasted Nuthatch +143%White-breasted Nuthatch +516%

Owls Strigidae

Barred Owl +344%Eastern Screech-Owl -3%Great Horned Owl +53%

Starlings & Mynas Sturnidae

European Starling -53%

Ibises & Spoonbills Threskiornithidae

Glossy Ibis +102%

Hummingbirds Trochilidae

Ruby-throated Hummingbird +150%

Wrens Troglodytidae

Carolina Wren +928%Marsh Wren -24%Northern House Wren +46%Sedge Wren +130%Winter Wren +108%

Thrushes Turdidae

American Robin -5%Eastern Bluebird +712%Hermit Thrush -19%Veery +43%Wood Thrush -65%

Tyrant Flycatchers Tyrannidae

Acadian Flycatcher +146%Alder Flycatcher +95%Eastern Kingbird -55%Eastern Phoebe +53%Eastern Wood-Pewee +69%Great Crested Flycatcher +62%Least Flycatcher -85%Willow Flycatcher +275%

Vireos Vireonidae

Blue-headed Vireo +204%Red-eyed Vireo +53%Warbling Vireo +263%White-eyed Vireo +39%Yellow-throated Vireo +127%

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.