BirdAnalyst
State · BBS 2025 Release · 1966–2024

Wyoming Breeding Birds

249 species recorded across 139 survey routes, 1968 to 2024. 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 48× 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 →

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 →

Sandhill Crane has surged in Wyoming: up 11× 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 →

Black-crowned Night Heron has collapsed in Wyoming: down 93% 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 →

Ovenbird has surged in Wyoming: up 780% on the route-weighted index since 1971.

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

8 species
-61%

Wetland birds

20 species
-56%

Grassland birds

16 species
-28%

Aerial insectivores

20 species
-20%

Birds of prey

18 species
-13%

Shorebirds

8 species
-13%

Forest birds

73 species
-12%

Generalists

13 species
+63%

Arid-land birds

3 species
+187%

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 +711%Cooper's Hawk -52%Ferruginous Hawk -41%Golden Eagle +179%Northern Harrier -19%Red-tailed Hawk +88%Sharp-shinned Hawk -13%Swainson's Hawk +171%

Larks Alaudidae

Horned Lark -39%

Kingfishers Alcedinidae

Belted Kingfisher -31%

Ducks, Geese & Waterfowl Anatidae

American Wigeon -15%Barrow's Goldeneye +112%Blue-winged Teal -27%Bufflehead -56%Canada Goose 48×Canvasback +196%Cinnamon Teal -46%Common Merganser +51%Gadwall +167%Green-winged Teal -47%Lesser Scaup +121%Mallard -2%Northern Pintail -70%Northern Shoveler +99%Redhead +116%Ring-necked Duck +34%Ruddy Duck -24%Trumpeter Swan +441%Wood Duck +1%

Swifts Apodidae

White-throated Swift +621%

Herons, Egrets & Bitterns Ardeidae

American Bittern -90%Black-crowned Night Heron -93%Great Blue Heron +39%

Waxwings Bombycillidae

Cedar Waxwing +134%

Longspurs & Snow Buntings Calcariidae

Chestnut-collared Longspur -80%Thick-billed Longspur +192%

Nightjars & Nighthawks Caprimulgidae

Common Nighthawk +51%Common Poorwill -55%

Cardinals & Grosbeaks Cardinalidae

Black-headed Grosbeak +159%Blue Grosbeak +149%Dickcissel +73%Indigo Bunting -53%Lazuli Bunting -36%Western Tanager -1%

New World Vultures Cathartidae

Turkey Vulture +322%

Treecreepers Certhiidae

Brown Creeper -34%

Plovers & Lapwings Charadriidae

Killdeer -21%Mountain Plover -79%

Dippers Cinclidae

American Dipper -62%

Pigeons & Doves Columbidae

Eurasian Collared-Dove +562%Mourning Dove -11%Rock Pigeon -59%

Crows, Jays & Magpies Corvidae

American Crow +202%Black-billed Magpie -29%Blue Jay +72%Canada Jay -93%Clark's Nutcracker +187%Common Raven +89%Pinyon Jay -87%Steller's Jay -64%

Cuckoos, Roadrunners & Anis Cuculidae

Black-billed Cuckoo -88%Yellow-billed Cuckoo -77%

Falcons & Caracaras Falconidae

American Kestrel +41%Merlin -63%Peregrine Falcon +19%Prairie Falcon -34%

Finches Fringillidae

American Goldfinch +43%Cassin's Finch +41%Evening Grosbeak -74%House Finch +162%Pine Grosbeak -36%Pine Siskin +23%Red Crossbill +11%

Loons Gaviidae

Common Loon -47%

Cranes Gruidae

Sandhill Crane 11×

Swallows & Martins Hirundinidae

Bank Swallow -5%Barn Swallow +90%Cliff Swallow -27%Northern Rough-winged Swallow -12%Tree Swallow +71%Violet-green Swallow +215%

Blackbirds & Orioles Icteridae

Bobolink +170%Brewer's Blackbird -52%Brown-headed Cowbird +388%Bullock's Oriole +35%Common Grackle -45%Orchard Oriole -10%Red-winged Blackbird -4%Western Meadowlark -18%Yellow-headed Blackbird +29%

Yellow-breasted Chat Icteriidae

Yellow-breasted Chat +5%

Shrikes Laniidae

Loggerhead Shrike +11%

Gulls, Terns & Skimmers Laridae

California Gull -11%Forster's Tern -63%Franklin's Gull -95%Ring-billed Gull +645%

Mockingbirds & Thrashers Mimidae

Brown Thrasher -28%Gray Catbird +90%Northern Mockingbird +34%Sage Thrasher +96%

Wagtails & Pipits Motacillidae

American Pipit +37%

New World Quail Odontophoridae

Northern Bobwhite -58%

Osprey Pandionidae

Osprey +70%

Chickadees & Titmice Paridae

Black-capped Chickadee -0%Mountain Chickadee +22%

Wood-Warblers Parulidae

American Redstart -14%Common Yellowthroat +93%MacGillivray's Warbler +110%Orange-crowned Warbler -54%Ovenbird +780%Wilson's Warbler -49%Yellow Warbler +48%

New World Sparrows Passerellidae

Baird's Sparrow -40%Brewer's Sparrow +46%Chipping Sparrow -19%Clay-colored Sparrow -64%Field Sparrow +118%Fox Sparrow -42%Grasshopper Sparrow +63%Green-tailed Towhee +84%Lark Bunting -69%Lark Sparrow -3%Lincoln's Sparrow +200%Sagebrush Sparrow +105%Savannah Sparrow +509%Song Sparrow +137%Spotted Towhee +125%Vesper Sparrow +34%White-crowned Sparrow +27%

Old World Sparrows Passeridae

House Sparrow +22%

Pelicans Pelecanidae

American White Pelican +606%

Cormorants Phalacrocoracidae

Double-crested Cormorant +14%

Pheasants, Grouse & Turkeys Phasianidae

Chukar +365%Dusky Grouse -65%Greater Sage-Grouse -80%Ring-necked Pheasant -67%Ruffed Grouse -49%Sharp-tailed Grouse +56%Wild Turkey -44%

Woodpeckers Picidae

American Three-toed Woodpecker +45%Black-backed Woodpecker -2%Downy Woodpecker -68%Hairy Woodpecker +4%Lewis's Woodpecker -75%Red-headed Woodpecker -68%Red-naped Sapsucker +7%Williamson's Sapsucker -52%

Grebes Podicipedidae

Eared Grebe +72%Pied-billed Grebe -85%Western Grebe +43%

Gnatcatchers Polioptilidae

Blue-gray Gnatcatcher -33%

Rails, Gallinules & Coots Rallidae

American Coot +71%Sora +31%

Avocets & Stilts Recurvirostridae

American Avocet +117%

Kinglets Regulidae

Golden-crowned Kinglet -9%Ruby-crowned Kinglet +405%

Sandpipers & Allies Scolopacidae

Long-billed Curlew +118%Spotted Sandpiper -17%Upland Sandpiper +331%Willet +160%Wilson's Phalarope +14%Wilson's Snipe +241%

Nuthatches Sittidae

Pygmy Nuthatch -49%Red-breasted Nuthatch +94%White-breasted Nuthatch -87%

Owls Strigidae

Burrowing Owl +7%Great Horned Owl -90%Short-eared Owl -24%

Starlings & Mynas Sturnidae

European Starling +544%

Hummingbirds Trochilidae

Broad-tailed Hummingbird +517%Calliope Hummingbird -51%Rufous Hummingbird +39%

Wrens Troglodytidae

Bewick's Wren -86%Canyon Wren -98%Marsh Wren -57%Northern House Wren +308%Rock Wren -28%

Thrushes Turdidae

American Robin -1%Hermit Thrush +704%Mountain Bluebird +187%Swainson's Thrush -14%Townsend's Solitaire -37%Veery -6%

Tyrant Flycatchers Tyrannidae

Cassin's Kingbird +2%Dusky Flycatcher +476%Eastern Kingbird +23%Gray Flycatcher -61%Hammond's Flycatcher +637%Least Flycatcher +110%Olive-sided Flycatcher +93%Say's Phoebe +19%Western Kingbird +142%Western Wood-Pewee +409%Willow Flycatcher -38%

Vireos Vireonidae

Plumbeous Vireo -35%Red-eyed Vireo +88%Warbling Vireo +53%

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