State · BBS 2025 Release · 1966–2024
Montana Breeding Birds
253 species recorded across 116 survey routes, 1968 to 2024. Browse by family or guild below.
Montana Bird Population Trends
long arc declinecomputed index
Trumpeter Swan has collapsed in Montana: down 94% on the route-weighted index since 1975.
long arc declinecomputed index
Evening Grosbeak has collapsed in Montana: down 92% on the route-weighted index since 1970.
long arc declinecomputed index
Pinyon Jay has collapsed in Montana: down 90% on the route-weighted index since 1971.
long arc declinecomputed index
Barrow's Goldeneye has collapsed in Montana: down 86% on the route-weighted index since 1985.
long arc declinecomputed index
Common Tern has collapsed in Montana: down 83% on the route-weighted index since 1976.
long arc declinecomputed index
Cooper's Hawk has collapsed in Montana: down 80% on the route-weighted index since 1974.
How Bird Guilds Are Faring in Montana
Montana Bird Survey Routes
Browse Montana Birds By Family
Each species links to its trend in Montana.
Hawks, Eagles & Kites Accipitridae
Larks Alaudidae
Kingfishers Alcedinidae
Ducks, Geese & Waterfowl Anatidae
American Wigeon -49%Barrow's Goldeneye -86%Blue-winged Teal +4%Bufflehead +252%Canada Goose 20×Canvasback -35%Cinnamon Teal -26%Common Goldeneye -77%Common Merganser +313%Gadwall -7%Green-winged Teal -24%Hooded Merganser +67%Lesser Scaup -24%Mallard -19%Northern Pintail -42%Northern Shoveler +43%Redhead +120%Ring-necked Duck -21%Ruddy Duck +192%Trumpeter Swan -94%Wood Duck -40%
Waxwings Bombycillidae
Nightjars & Nighthawks Caprimulgidae
Cardinals & Grosbeaks Cardinalidae
New World Vultures Cathartidae
Treecreepers Certhiidae
Plovers & Lapwings Charadriidae
Dippers Cinclidae
Crows, Jays & Magpies Corvidae
Falcons & Caracaras Falconidae
Finches Fringillidae
Loons Gaviidae
Cranes Gruidae
Swallows & Martins Hirundinidae
Blackbirds & Orioles Icteridae
Shrikes Laniidae
Gulls, Terns & Skimmers Laridae
Mockingbirds & Thrashers Mimidae
Wagtails & Pipits Motacillidae
Osprey Pandionidae
Chickadees & Titmice Paridae
Wood-Warblers Parulidae
New World Sparrows Passerellidae
Baird's Sparrow +64%Brewer's Sparrow -35%Chipping Sparrow +12%Clay-colored Sparrow +116%Field Sparrow +326%Fox Sparrow +232%Grasshopper Sparrow +490%Green-tailed Towhee -37%Lark Bunting -69%Lark Sparrow -56%Lincoln's Sparrow +757%Savannah Sparrow +313%Song Sparrow -21%Spotted Towhee +233%Vesper Sparrow +70%White-crowned Sparrow +70%
Old World Sparrows Passeridae
Pelicans Pelecanidae
Cormorants Phalacrocoracidae
Pheasants, Grouse & Turkeys Phasianidae
Woodpeckers Picidae
Avocets & Stilts Recurvirostridae
Sandpipers & Allies Scolopacidae
Starlings & Mynas Sturnidae
Hummingbirds Trochilidae
Thrushes Turdidae
Tyrant Flycatchers Tyrannidae
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.