State · BBS 2025 Release · 1966–2024
Alaska Breeding Birds
244 species recorded across 135 survey routes, 1968 to 2024. Browse by family or guild below.
Alaska Bird Population TrendsNotable 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 →
Barn Swallow has collapsed in Alaska: down 99% on the route-weighted index since 1973.
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 →
Greater White-fronted Goose has surged in Alaska: up 20× on the route-weighted index since 1988.
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 →
Say's Phoebe has collapsed in Alaska: down 99% on the route-weighted index since 1983.
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 →
Smith's Longspur has surged in Alaska: up 12× on the route-weighted index since 1997.
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 →
Great Blue Heron has collapsed in Alaska: down 97% on the route-weighted index since 1973.
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 →
Dunlin has surged in Alaska: up 12× on the route-weighted index since 1989.
How Bird Guilds Are Faring in AlaskaGuild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology →
Alaska Bird Survey Routes
Browse Alaska Birds 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 →
Each species links to its trend in Alaska.
Hawks, Eagles & Kites Accipitridae
Larks Alaudidae
Kingfishers Alcedinidae
Ducks, Geese & Waterfowl Anatidae
American Wigeon +246%Barrow's Goldeneye -28%Black Scoter +1%Bufflehead -36%Canada Goose +137%Canvasback +535%Common Eider +69%Common Goldeneye -21%Common Merganser -87%Gadwall -87%Greater Scaup +45%Greater White-fronted Goose 20×Green-winged Teal -52%Harlequin Duck -76%Lesser Scaup +153%Long-tailed Duck -17%Mallard -67%Northern Pintail +66%Northern Shoveler -52%Red-breasted Merganser -42%Ring-necked Duck +59%Surf Scoter -61%Trumpeter Swan +107%Tundra Swan +174%White-winged Scoter -90%
Waxwings Bombycillidae
Cardinals & Grosbeaks Cardinalidae
Treecreepers Certhiidae
Plovers & Lapwings Charadriidae
Dippers Cinclidae
Crows, Jays & Magpies Corvidae
Finches Fringillidae
Cranes Gruidae
Oystercatchers Haematopodidae
Swallows & Martins Hirundinidae
Shrikes Laniidae
Gulls, Terns & Skimmers Laridae
Osprey Pandionidae
Chickadees & Titmice Paridae
Wood-Warblers Parulidae
New World Sparrows Passerellidae
Cormorants Phalacrocoracidae
Pheasants, Grouse & Turkeys Phasianidae
Leaf Warblers Phylloscopidae
Woodpeckers Picidae
Grebes Podicipedidae
Rails, Gallinules & Coots Rallidae
Sandpipers & Allies Scolopacidae
Bar-tailed Godwit -45%Black Turnstone +6%Bristle-thighed Curlew -41%Dunlin 12×Greater Yellowlegs +32%Hudsonian Godwit -53%Least Sandpiper +278%Lesser Yellowlegs -48%Red-necked Phalarope -30%Rock Sandpiper -77%Ruddy Turnstone -58%Semipalmated Sandpiper +291%Short-billed Dowitcher -58%Solitary Sandpiper +68%Spotted Sandpiper +100%Upland Sandpiper -81%Wandering Tattler -38%Western Sandpiper +31%Whimbrel +66%Wilson's Snipe +102%
Skuas & Jaegers Stercorariidae
Owls Strigidae
Starlings & Mynas Sturnidae
Hummingbirds Trochilidae
Wrens Troglodytidae
Thrushes Turdidae
Tyrant Flycatchers Tyrannidae
Vireos Vireonidae
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.