State · BBS 2025 Release · 1966–2024
Oregon Breeding Birds
250 species recorded across 143 survey routes, 1968 to 2024. Browse by family or guild below.
Oregon 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 →
Western Gull has collapsed in Oregon: down 98% on the route-weighted index since 1972.
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 Oregon: up 87× on the route-weighted index since 2008.
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 Tern has collapsed in Oregon: down 95% on the route-weighted index since 1972.
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 →
White-faced Ibis has surged in Oregon: up 22× on the route-weighted index since 1979.
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 →
Western Grebe has collapsed in Oregon: down 94% on the route-weighted index since 1988.
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 →
American Coot has surged in Oregon: up 687% on the route-weighted index since 1971.
How Bird Guilds Are Faring in OregonGuild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology →
Oregon Bird Survey Routes
Browse Oregon 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 Oregon.
Hawks, Eagles & Kites Accipitridae
Bushtits Aegithalidae
Larks Alaudidae
Kingfishers Alcedinidae
Ducks, Geese & Waterfowl Anatidae
American Wigeon +79%Blue-winged Teal -71%Bufflehead -82%Canada Goose +374%Canvasback +461%Cinnamon Teal -58%Common Merganser -28%Gadwall +473%Green-winged Teal +52%Hooded Merganser -86%Lesser Scaup +170%Mallard +86%Northern Pintail -81%Northern Shoveler +294%Redhead +239%Ring-necked Duck +2%Ruddy Duck +78%Trumpeter Swan -84%Wood Duck -50%
Herons, Egrets & Bitterns Ardeidae
Waxwings Bombycillidae
New World Vultures Cathartidae
Treecreepers Certhiidae
Plovers & Lapwings Charadriidae
Dippers Cinclidae
Pigeons & Doves Columbidae
Crows, Jays & Magpies Corvidae
Finches Fringillidae
Cranes Gruidae
Swallows & Martins Hirundinidae
Blackbirds & Orioles Icteridae
Shrikes Laniidae
Gulls, Terns & Skimmers Laridae
New World Quail Odontophoridae
Osprey Pandionidae
Chickadees & Titmice Paridae
Wood-Warblers Parulidae
New World Sparrows Passerellidae
Black-throated Sparrow +88%Brewer's Sparrow +143%California Towhee -45%Chipping Sparrow -23%Fox Sparrow -66%Grasshopper Sparrow -28%Green-tailed Towhee +71%Lark Sparrow +10%Lincoln's Sparrow -59%Sagebrush Sparrow -61%Savannah Sparrow +22%Song Sparrow -28%Spotted Towhee -17%Vesper Sparrow +89%White-crowned Sparrow -45%
Old World Sparrows Passeridae
Pelicans Pelecanidae
Cormorants Phalacrocoracidae
Pheasants, Grouse & Turkeys Phasianidae
Woodpeckers Picidae
Gnatcatchers Polioptilidae
Avocets & Stilts Recurvirostridae
Sandpipers & Allies Scolopacidae
Owls Strigidae
Starlings & Mynas Sturnidae
Sylviid Warblers Sylviidae
Ibises & Spoonbills Threskiornithidae
Hummingbirds Trochilidae
Wrens Troglodytidae
Thrushes Turdidae
Tyrant Flycatchers Tyrannidae
Barn-Owls Tytonidae
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.