BirdAnalyst
State · BBS 2025 Release · 1966–2024

Idaho Breeding Birds

235 species recorded across 66 survey routes, 1968 to 2024. Browse by family or guild below.

Idaho 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 →

Lark Bunting has collapsed in Idaho: down 96% on the route-weighted index since 1996.

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 Idaho: up 20× on the route-weighted index since 1975.

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 →

California Gull has collapsed in Idaho: down 94% on the route-weighted index since 1971.

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 →

Lincoln's Sparrow has surged in Idaho: up 14× 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 →

Ring-necked Pheasant has collapsed in Idaho: down 92% on the route-weighted index since 1970.

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 →

Eurasian Collared-Dove has surged in Idaho: up 878% on the route-weighted index since 2009.

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

-96%

Game birds

10 species
-79%

Shorebirds

8 species
-75%

Wetland birds

26 species
-67%

Generalists

12 species
-40%

Aerial insectivores

22 species
-36%

Grassland birds

9 species
-24%

Forest birds

74 species
+0%

Arid-land birds

4 species
+28%

Birds of prey

17 species
+88%

Waterfowl

18 species

Idaho Bird Survey Routes

Browse Idaho 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 Idaho.

Hawks, Eagles & Kites Accipitridae

American Goshawk -77%Bald Eagle +8%Cooper's Hawk -87%Ferruginous Hawk +675%Golden Eagle -22%Northern Harrier -43%Red-tailed Hawk +481%Sharp-shinned Hawk -29%Swainson's Hawk +622%

Larks Alaudidae

Horned Lark +9%

Kingfishers Alcedinidae

Belted Kingfisher -81%

Ducks, Geese & Waterfowl Anatidae

American Wigeon -18%Barrow's Goldeneye -91%Blue-winged Teal -44%Bufflehead -43%Canada Goose 20×Cinnamon Teal -61%Common Goldeneye -92%Common Merganser -67%Gadwall +162%Green-winged Teal -65%Lesser Scaup +43%Mallard +28%Northern Pintail -84%Northern Shoveler -27%Redhead -89%Ring-necked Duck +61%Ruddy Duck -74%Wood Duck +131%

Swifts Apodidae

Black Swift -68%Vaux's Swift -76%White-throated Swift +2%

Herons, Egrets & Bitterns Ardeidae

American Bittern -69%Black-crowned Night Heron -80%Great Blue Heron +157%Snowy Egret -86%

Waxwings Bombycillidae

Cedar Waxwing +68%

Nightjars & Nighthawks Caprimulgidae

Common Nighthawk +162%Common Poorwill -79%

Cardinals & Grosbeaks Cardinalidae

Black-headed Grosbeak +323%Lazuli Bunting +602%Western Tanager +362%

New World Vultures Cathartidae

Turkey Vulture +104%

Treecreepers Certhiidae

Brown Creeper -46%

Plovers & Lapwings Charadriidae

Killdeer -84%

Dippers Cinclidae

American Dipper +20%

Pigeons & Doves Columbidae

Eurasian Collared-Dove +878%Mourning Dove -56%Rock Pigeon -10%

Crows, Jays & Magpies Corvidae

American Crow -4%Black-billed Magpie -60%Canada Jay +45%Clark's Nutcracker -38%Common Raven +278%Steller's Jay -78%

Falcons & Caracaras Falconidae

American Kestrel +13%Merlin -68%Prairie Falcon +69%

Finches Fringillidae

American Goldfinch +19%Cassin's Finch +507%Evening Grosbeak -82%House Finch -19%Lesser Goldfinch +105%Pine Grosbeak -70%Pine Siskin +164%Red Crossbill +352%

Cranes Gruidae

Sandhill Crane +398%

Swallows & Martins Hirundinidae

Bank Swallow -63%Barn Swallow -71%Cliff Swallow +40%Northern Rough-winged Swallow -16%Tree Swallow +68%Violet-green Swallow -32%

Blackbirds & Orioles Icteridae

Bobolink +2%Brewer's Blackbird -80%Brown-headed Cowbird -24%Bullock's Oriole +58%Common Grackle +7%Red-winged Blackbird -63%Western Meadowlark -47%Yellow-headed Blackbird -74%

Yellow-breasted Chat Icteriidae

Yellow-breasted Chat +600%

Shrikes Laniidae

Loggerhead Shrike +142%

Gulls, Terns & Skimmers Laridae

Black Tern -30%California Gull -94%Caspian Tern -81%Forster's Tern -89%Franklin's Gull +761%Ring-billed Gull -76%

Mockingbirds & Thrashers Mimidae

Gray Catbird -4%Sage Thrasher +106%

New World Quail Odontophoridae

California Quail +33%

Osprey Pandionidae

Osprey +52%

Chickadees & Titmice Paridae

Black-capped Chickadee -5%Chestnut-backed Chickadee +207%Juniper Titmouse -82%Mountain Chickadee +27%

Wood-Warblers Parulidae

American Redstart -71%Black-throated Gray Warbler -6%Common Yellowthroat +262%MacGillivray's Warbler +96%Nashville Warbler +183%Northern Waterthrush -28%Orange-crowned Warbler +204%Townsend's Warbler +770%Wilson's Warbler +152%Yellow Warbler +32%

New World Sparrows Passerellidae

Black-throated Sparrow -40%Brewer's Sparrow -13%Chipping Sparrow +61%Fox Sparrow +365%Grasshopper Sparrow -47%Green-tailed Towhee +213%Lark Bunting -96%Lark Sparrow +23%Lincoln's Sparrow 14×Sagebrush Sparrow +364%Savannah Sparrow -23%Song Sparrow +74%Spotted Towhee +108%Vesper Sparrow +323%White-crowned Sparrow -15%

Old World Sparrows Passeridae

House Sparrow -74%

Pelicans Pelecanidae

American White Pelican -52%

Cormorants Phalacrocoracidae

Double-crested Cormorant -76%

Pheasants, Grouse & Turkeys Phasianidae

Chukar -92%Dusky Grouse -81%Gray Partridge -39%Greater Sage-Grouse -43%Ring-necked Pheasant -92%Ruffed Grouse -31%Sharp-tailed Grouse -90%Spruce Grouse +88%Wild Turkey +209%

Woodpeckers Picidae

American Three-toed Woodpecker -25%Black-backed Woodpecker -64%Downy Woodpecker -62%Hairy Woodpecker -47%Lewis's Woodpecker +79%Pileated Woodpecker +166%Red-naped Sapsucker +79%Williamson's Sapsucker -11%

Grebes Podicipedidae

Clark's Grebe -37%Eared Grebe -70%Pied-billed Grebe -49%Red-necked Grebe -78%Western Grebe -91%

Gnatcatchers Polioptilidae

Blue-gray Gnatcatcher -24%

Rails, Gallinules & Coots Rallidae

American Coot -62%Sora +15%Virginia Rail -55%

Avocets & Stilts Recurvirostridae

American Avocet -45%Black-necked Stilt -34%

Kinglets Regulidae

Golden-crowned Kinglet +832%Ruby-crowned Kinglet +249%

Sandpipers & Allies Scolopacidae

Long-billed Curlew +27%Spotted Sandpiper -58%Willet -56%Wilson's Phalarope -78%Wilson's Snipe -63%

Nuthatches Sittidae

Pygmy Nuthatch -75%Red-breasted Nuthatch +448%White-breasted Nuthatch -91%

Owls Strigidae

Burrowing Owl -48%Great Horned Owl -46%Short-eared Owl -54%

Starlings & Mynas Sturnidae

European Starling -58%

Ibises & Spoonbills Threskiornithidae

White-faced Ibis +198%

Hummingbirds Trochilidae

Black-chinned Hummingbird +148%Broad-tailed Hummingbird +612%Calliope Hummingbird +57%Rufous Hummingbird -14%

Wrens Troglodytidae

Canyon Wren -78%Marsh Wren -53%Northern House Wren +483%Pacific Wren +583%Rock Wren +375%

Thrushes Turdidae

American Robin -30%Hermit Thrush +47%Mountain Bluebird -14%Swainson's Thrush +133%Townsend's Solitaire -19%Varied Thrush -10%Veery +17%Western Bluebird -21%

Tyrant Flycatchers Tyrannidae

Ash-throated Flycatcher -86%Dusky Flycatcher +62%Eastern Kingbird -62%Gray Flycatcher +355%Hammond's Flycatcher +61%Least Flycatcher +170%Olive-sided Flycatcher +76%Say's Phoebe +54%Western Kingbird +157%Western Wood-Pewee +62%Willow Flycatcher +112%

Vireos Vireonidae

Cassin's Vireo +166%Plumbeous Vireo -88%Red-eyed Vireo +148%Warbling Vireo +135%

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