State · BBS 2025 Release · 1966–2024

Washington Breeding Birds

247 species recorded across 114 survey routes, 1968 to 2024. Browse by family or guild below.

Washington Bird Population Trends

long arc declinecomputed index

Black-crowned Night Heron has collapsed in Washington: down 95% on the route-weighted index since 1975.

long arc declinecomputed index

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

long arc declinecomputed index

Black Swift has collapsed in Washington: down 92% on the route-weighted index since 1970.

long arc declinecomputed index

Red-eyed Vireo has collapsed in Washington: down 88% on the route-weighted index since 1970.

long arc declinecomputed index

Marbled Murrelet has collapsed in Washington: down 88% on the route-weighted index since 1987.

long arc declinecomputed index

Eared Grebe has collapsed in Washington: down 87% on the route-weighted index since 1979.

How Bird Guilds Are Faring in Washington

Washington Bird Survey Routes

Browse Washington Birds By Family

Each species links to its trend in Washington.

Osprey Pandionidae

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