State · BBS 2025 Release · 1966–2024

Tennessee Breeding Birds

161 species recorded across 55 survey routes, 1966 to 2024. Browse by family or guild below.

Tennessee 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 →

Yellow Warbler has collapsed in Tennessee: down 98% on the route-weighted index since 1968.

Loggerhead Shrike has collapsed in Tennessee: down 96% on the route-weighted index since 1968.

Northern Bobwhite has collapsed in Tennessee: down 95% on the route-weighted index since 1968.

Red-shouldered Hawk has surged in Tennessee: up 31× on the route-weighted index since 1968.

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

Tennessee Bird Survey Routes

Browse Tennessee 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 Tennessee.

Osprey Pandionidae

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