BirdAnalyst
Bird Conservation Region 2

BCR 2

An ecological region spanning Alaska, with 24 survey routes. BCRs are the natural unit for bird trends.

What Is Moving Here

long arc declinecomputed index

Red-necked Grebe has collapsed in BCR 2: down 96% on the route-weighted index since 1994.

long arc increasecomputed index

Black-legged Kittiwake has surged in BCR 2: up 49× on the route-weighted index since 1990.

long arc declinecomputed index

Long-tailed Duck has collapsed in BCR 2: down 93% on the route-weighted index since 1994.

long arc increasecomputed index

Least Sandpiper has surged in BCR 2: up 636% on the route-weighted index since 1985.

long arc declinecomputed index

Rusty Blackbird has collapsed in BCR 2: down 88% on the route-weighted index since 1987.

long arc increasecomputed index

American Robin has surged in BCR 2: up 632% on the route-weighted index since 1985.

How Guilds Are Faring

-81%

Game birds

2 species
-78%

Aerial insectivores

4 species
-66%

Generalists

3 species
-63%

Grassland birds

5 species
-50%

Forest birds

30 species
-48%

Wetland birds

17 species
-44%

Birds of prey

7 species
-20%

Waterfowl

17 species
-17%

Shorebirds

21 species
+9%

Seabirds

3 species

Survey Routes

Species By Family

Hawks, Eagles & Kites Accipitridae

Bald Eagle +62%Golden Eagle -4%Northern Harrier -61%Rough-legged Hawk -26%

Kingfishers Alcedinidae

Belted Kingfisher -74%

Auks, Murres & Puffins Alcidae

Pigeon Guillemot -61%

Ducks, Geese & Waterfowl Anatidae

American Wigeon -71%Black Scoter +25%Canada Goose -53%Canvasback +306%Common Eider +139%Common Goldeneye -76%Common Merganser -79%Greater Scaup +173%Green-winged Teal -80%Harlequin Duck -73%Long-tailed Duck -93%Mallard -70%Northern Pintail +33%Northern Shoveler -85%Red-breasted Merganser -69%Tundra Swan +190%White-winged Scoter -41%

Longspurs & Snow Buntings Calcariidae

Lapland Longspur -16%

Treecreepers Certhiidae

Brown Creeper -68%

Plovers & Lapwings Charadriidae

American Golden-Plover +12%Pacific Golden-Plover -14%Semipalmated Plover +30%

Dippers Cinclidae

American Dipper -79%

Crows, Jays & Magpies Corvidae

American Crow -55%Black-billed Magpie -74%Canada Jay +11%Common Raven -36%

Falcons & Caracaras Falconidae

Gyrfalcon +110%Merlin -59%

Finches Fringillidae

Pine Grosbeak +18%Pine Siskin -11%

Loons Gaviidae

Common Loon +89%Pacific Loon -36%Red-throated Loon +315%

Cranes Gruidae

Sandhill Crane -4%

Oystercatchers Haematopodidae

Black Oystercatcher -80%

Swallows & Martins Hirundinidae

Bank Swallow -68%Cliff Swallow +420%Tree Swallow +40%

Blackbirds & Orioles Icteridae

Rusty Blackbird -88%

Shrikes Laniidae

Northern Shrike -27%

Gulls, Terns & Skimmers Laridae

Aleutian Tern -73%Arctic Tern +45%Black-legged Kittiwake 49×Bonaparte's Gull +37%Glaucous Gull +448%Glaucous-winged Gull -75%Herring Gull -68%Short-billed Gull -65%

Wagtails & Pipits Motacillidae

American Pipit -17%Eastern Yellow Wagtail -86%

Old World Flycatchers & Chats Muscicapidae

Bluethroat +176%Northern Wheatear +14%

Chickadees & Titmice Paridae

Black-capped Chickadee -26%Boreal Chickadee +23%

Wood-Warblers Parulidae

Blackpoll Warbler -76%Northern Waterthrush -55%Orange-crowned Warbler -29%Wilson's Warbler -48%Yellow Warbler -0%

New World Sparrows Passerellidae

American Tree Sparrow +49%Fox Sparrow -32%Golden-crowned Sparrow -25%Lincoln's Sparrow -0%Savannah Sparrow -26%Song Sparrow -71%White-crowned Sparrow +105%

Cormorants Phalacrocoracidae

Pelagic Cormorant -45%

Pheasants, Grouse & Turkeys Phasianidae

Rock Ptarmigan +23%Willow Ptarmigan -73%

Leaf Warblers Phylloscopidae

Arctic Warbler -36%

Woodpeckers Picidae

Downy Woodpecker -11%

Grebes Podicipedidae

Red-necked Grebe -97%

Kinglets Regulidae

Golden-crowned Kinglet +27%Ruby-crowned Kinglet -61%

Sandpipers & Allies Scolopacidae

Bar-tailed Godwit -19%Black Turnstone +28%Bristle-thighed Curlew -20%Dunlin +2%Greater Yellowlegs +71%Hudsonian Godwit +81%Least Sandpiper +636%Lesser Yellowlegs -80%Red-necked Phalarope +34%Ruddy Turnstone -48%Semipalmated Sandpiper +183%Short-billed Dowitcher -50%Spotted Sandpiper -50%Wandering Tattler -57%Western Sandpiper +218%Whimbrel -30%Wilson's Snipe -2%

Nuthatches Sittidae

Red-breasted Nuthatch +85%

Skuas & Jaegers Stercorariidae

Long-tailed Jaeger +202%Parasitic Jaeger -43%

Owls Strigidae

Short-eared Owl -23%

Wrens Troglodytidae

Pacific Wren -51%

Thrushes Turdidae

American Robin +632%Gray-cheeked Thrush -5%Hermit Thrush -57%Swainson's Thrush -59%Varied Thrush -4%

Tyrant Flycatchers Tyrannidae

Alder Flycatcher -87%

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