BirdAnalyst
State · BBS 2026 Release · 1966–2025

Wyoming Breeding Birds

249 species recorded across 139 survey routes, 1968 to 2025. Browse by family or guild below.

Wyoming 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 →

Canyon Wren has collapsed in Wyoming: down 98% on the route-weighted index since 1979.

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 Wyoming: up 51× on the route-weighted index since 1976.

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 →

Ash-throated Flycatcher has collapsed in Wyoming: down 95% on the route-weighted index since 1978.

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 →

Sandhill Crane has surged in Wyoming: up 992% on the route-weighted index since 1977.

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 →

Franklin's Gull has collapsed in Wyoming: down 95% on the route-weighted index since 1990.

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 →

Ring-billed Gull has surged in Wyoming: up 780% on the route-weighted index since 1979.

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

-86%

Game birds

9 species
-62%

Grassland birds

17 species
-60%

Wetland birds

20 species
-28%

Birds of prey

18 species
-27%

Aerial insectivores

21 species
-14%

Generalists

13 species
-13%

Shorebirds

8 species
-7%

Forest birds

73 species
+63%

Arid-land birds

3 species
+204%

Waterfowl

19 species

Wyoming Bird Survey Routes

Browse Wyoming 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 Wyoming.

Hawks, Eagles & Kites Accipitridae

American Goshawk -53%Bald Eagle +622%Cooper's Hawk -50%Ferruginous Hawk -51%Golden Eagle +104%Northern Harrier -20%Red-tailed Hawk +79%Sharp-shinned Hawk -54%Swainson's Hawk +137%

Larks Alaudidae

Horned Lark -39%

Kingfishers Alcedinidae

Belted Kingfisher -46%

Ducks, Geese & Waterfowl Anatidae

American Wigeon +27%Barrow's Goldeneye +66%Blue-winged Teal -37%Bufflehead -74%Canada Goose 51×Canvasback +152%Cinnamon Teal -37%Common Merganser -1%Gadwall +49%Green-winged Teal -45%Lesser Scaup +547%Mallard -12%Northern Pintail -82%Northern Shoveler +93%Redhead +73%Ring-necked Duck +103%Ruddy Duck -6%Trumpeter Swan +386%Wood Duck -0%

Swifts Apodidae

White-throated Swift +767%

Herons, Egrets & Bitterns Ardeidae

American Bittern -90%Black-crowned Night Heron -93%Great Blue Heron +57%

Waxwings Bombycillidae

Cedar Waxwing +129%

Longspurs & Snow Buntings Calcariidae

Chestnut-collared Longspur -78%Thick-billed Longspur +125%

Nightjars & Nighthawks Caprimulgidae

Common Nighthawk +39%Common Poorwill -42%

Cardinals & Grosbeaks Cardinalidae

Black-headed Grosbeak +158%Blue Grosbeak +220%Dickcissel +29%Indigo Bunting -54%Lazuli Bunting +20%Western Tanager +29%

New World Vultures Cathartidae

Turkey Vulture +239%

Treecreepers Certhiidae

Brown Creeper +0%

Plovers & Lapwings Charadriidae

Killdeer -16%Mountain Plover -84%

Dippers Cinclidae

American Dipper -45%

Pigeons & Doves Columbidae

Eurasian Collared-Dove +583%Mourning Dove -14%Rock Pigeon -5%

Crows, Jays & Magpies Corvidae

American Crow +182%Black-billed Magpie -36%Blue Jay +57%Canada Jay -84%Clark's Nutcracker +199%Common Raven +103%Pinyon Jay -85%Steller's Jay -82%

Cuckoos, Roadrunners & Anis Cuculidae

Black-billed Cuckoo -92%Yellow-billed Cuckoo -77%

Falcons & Caracaras Falconidae

American Kestrel +43%Merlin -65%Peregrine Falcon +129%Prairie Falcon -45%

Finches Fringillidae

American Goldfinch +56%Cassin's Finch +69%Evening Grosbeak -70%House Finch +165%Pine Grosbeak -35%Pine Siskin +60%Red Crossbill +14%

Loons Gaviidae

Common Loon -43%

Cranes Gruidae

Sandhill Crane +992%

Swallows & Martins Hirundinidae

Bank Swallow -15%Barn Swallow +87%Cliff Swallow -25%Northern Rough-winged Swallow -34%Tree Swallow +96%Violet-green Swallow +255%

Blackbirds & Orioles Icteridae

Bobolink +224%Brewer's Blackbird -55%Brown-headed Cowbird +368%Bullock's Oriole +33%Common Grackle -44%Orchard Oriole +21%Red-winged Blackbird -4%Western Meadowlark -25%Yellow-headed Blackbird +22%

Yellow-breasted Chat Icteriidae

Yellow-breasted Chat +11%

Shrikes Laniidae

Loggerhead Shrike +16%

Gulls, Terns & Skimmers Laridae

California Gull -41%Forster's Tern -64%Franklin's Gull -95%Ring-billed Gull +780%

Mockingbirds & Thrashers Mimidae

Brown Thrasher -26%Gray Catbird +103%Northern Mockingbird -2%Sage Thrasher +94%

Wagtails & Pipits Motacillidae

American Pipit +49%

New World Quail Odontophoridae

Northern Bobwhite -59%

Osprey Pandionidae

Osprey +102%

Chickadees & Titmice Paridae

Black-capped Chickadee -7%Mountain Chickadee +35%

Wood-Warblers Parulidae

American Redstart -15%Common Yellowthroat +116%MacGillivray's Warbler +164%Orange-crowned Warbler -36%Ovenbird +726%Wilson's Warbler -43%Yellow Warbler +53%

New World Sparrows Passerellidae

Baird's Sparrow -40%Brewer's Sparrow +47%Cassin's Sparrow +23%Chipping Sparrow -13%Clay-colored Sparrow -63%Field Sparrow +5%Fox Sparrow -19%Grasshopper Sparrow +51%Green-tailed Towhee +95%Lark Bunting -73%Lark Sparrow -6%Lincoln's Sparrow +241%Sagebrush Sparrow +93%Savannah Sparrow +520%Song Sparrow +173%Spotted Towhee +138%Vesper Sparrow +39%White-crowned Sparrow +52%

Old World Sparrows Passeridae

House Sparrow +34%

Pelicans Pelecanidae

American White Pelican +657%

Cormorants Phalacrocoracidae

Double-crested Cormorant -20%

Pheasants, Grouse & Turkeys Phasianidae

Chukar +357%Dusky Grouse -57%Gray Partridge +193%Greater Sage-Grouse -72%Ring-necked Pheasant -62%Ruffed Grouse -55%Sharp-tailed Grouse +206%Wild Turkey -31%

Woodpeckers Picidae

American Three-toed Woodpecker +50%Black-backed Woodpecker -2%Downy Woodpecker -58%Hairy Woodpecker +22%Lewis's Woodpecker -78%Red-headed Woodpecker -64%Red-naped Sapsucker +15%Williamson's Sapsucker -74%

Grebes Podicipedidae

Eared Grebe +390%Pied-billed Grebe -89%Western Grebe +35%

Gnatcatchers Polioptilidae

Blue-gray Gnatcatcher -31%

Rails, Gallinules & Coots Rallidae

American Coot +30%Sora +65%

Avocets & Stilts Recurvirostridae

American Avocet +69%

Kinglets Regulidae

Golden-crowned Kinglet -53%Ruby-crowned Kinglet +477%

Sandpipers & Allies Scolopacidae

Long-billed Curlew +68%Spotted Sandpiper +23%Upland Sandpiper +335%Willet +43%Wilson's Phalarope +145%Wilson's Snipe +200%

Nuthatches Sittidae

Pygmy Nuthatch -4%Red-breasted Nuthatch +125%White-breasted Nuthatch -89%

Owls Strigidae

Burrowing Owl +42%Great Horned Owl -91%Short-eared Owl -26%

Starlings & Mynas Sturnidae

European Starling +495%

Hummingbirds Trochilidae

Broad-tailed Hummingbird +547%Calliope Hummingbird -41%Rufous Hummingbird +39%

Wrens Troglodytidae

Bewick's Wren -88%Canyon Wren -98%Marsh Wren -59%Northern House Wren +283%Rock Wren -26%

Thrushes Turdidae

American Robin +6%Hermit Thrush +760%Mountain Bluebird +185%Swainson's Thrush -1%Townsend's Solitaire -32%Veery -9%

Tyrant Flycatchers Tyrannidae

Ash-throated Flycatcher -95%Cassin's Kingbird +25%Dusky Flycatcher +524%Eastern Kingbird +24%Gray Flycatcher -68%Hammond's Flycatcher 12×Least Flycatcher +55%Olive-sided Flycatcher +224%Say's Phoebe +40%Western Kingbird +128%Western Wood-Pewee +413%Willow Flycatcher -21%

Vireos Vireonidae

Plumbeous Vireo -64%Red-eyed Vireo +59%Warbling Vireo +65%

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.