State · BBS 2026 Release · 1966–2025

Missouri Breeding Birds

164 species recorded across 95 survey routes, 1967 to 2025. Browse by family or guild below.

Missouri 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 →

Little Blue Heron has collapsed in Missouri: down 99% on the route-weighted index since 1969.

Western Meadowlark has collapsed in Missouri: down 98% on the route-weighted index since 1969.

Red-shouldered Hawk has surged in Missouri: up 27× on the route-weighted index since 1977.

Loggerhead Shrike has collapsed in Missouri: down 92% on the route-weighted index since 1969.

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

Missouri Bird Survey Routes

Browse Missouri 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 Missouri.

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.