State · BBS 2026 Release · 1966–2025
Alaska Breeding Birds
245 species recorded across 135 survey routes, 1968 to 2025. 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 →
Smith's Longspur has surged in Alaska: up 11× 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 →
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 →
Red-breasted Nuthatch has surged in Alaska: up 930% on the route-weighted index since 1991.
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 →
Greater White-fronted Goose has surged in Alaska: up 841% on the route-weighted index since 1988.
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 +114%Barrow's Goldeneye -30%Black Scoter +16%Bufflehead -26%Canada Goose +60%Canvasback 26×Common Eider +68%Common Goldeneye -33%Common Merganser -91%Gadwall -90%Greater Scaup +49%Greater White-fronted Goose +841%Green-winged Teal -55%Harlequin Duck -86%Lesser Scaup +204%Long-tailed Duck -59%Mallard -72%Northern Pintail +43%Northern Shoveler -68%Red-breasted Merganser -57%Ring-necked Duck +145%Surf Scoter -52%Trumpeter Swan +21%Tundra Swan +110%White-winged Scoter -91%
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 +804%Greater Yellowlegs +36%Hudsonian Godwit -61%Least Sandpiper +331%Lesser Yellowlegs -49%Red-necked Phalarope -50%Rock Sandpiper -69%Ruddy Turnstone -58%Semipalmated Sandpiper +227%Short-billed Dowitcher -51%Solitary Sandpiper +27%Spotted Sandpiper +44%Upland Sandpiper -81%Wandering Tattler -38%Western Sandpiper +31%Whimbrel +97%Wilson's Snipe +96%
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 2026-08-14.