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 Trends

long arc declinecomputed index

Western Gull has collapsed in Oregon: down 98% on the route-weighted index since 1972.

long arc declinecomputed index

Black Tern has collapsed in Oregon: down 95% on the route-weighted index since 1972.

long arc declinecomputed index

Western Grebe has collapsed in Oregon: down 94% on the route-weighted index since 1988.

long arc declinecomputed index

White-throated Swift has collapsed in Oregon: down 91% on the route-weighted index since 1986.

long arc declinecomputed index

Gray Partridge has collapsed in Oregon: down 88% on the route-weighted index since 1978.

long arc declinecomputed index

Black-crowned Night Heron has collapsed in Oregon: down 87% on the route-weighted index since 1973.

How Bird Guilds Are Faring in Oregon

Oregon Bird Survey Routes

Browse Oregon Birds By Family

Each species links to its trend in Oregon.

Osprey Pandionidae

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