State · BBS 2025 Release · 1966–2024

Mississippi Breeding Birds

152 species recorded across 74 survey routes, 1966 to 2024. Browse by family or guild below.

Mississippi 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 →

Northern Bobwhite has collapsed in Mississippi: down 98% on the route-weighted index since 1968.

Grasshopper Sparrow has collapsed in Mississippi: down 96% on the route-weighted index since 1972.

Northern Rough-winged Swallow has surged in Mississippi: up 39× on the route-weighted index since 1969.

Common Nighthawk has collapsed in Mississippi: down 94% on the route-weighted index since 1968.

Red-shouldered Hawk has surged in Mississippi: up 26× on the route-weighted index since 1968.

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

Mississippi Bird Survey Routes

Browse Mississippi 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 Mississippi.

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