BirdAnalyst
Species · BCR 22 · BBS 2025 Release · 1966–2024

Common Gallinule In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieWetland birds

Common Gallinule in Eastern Tallgrass Prairie has collapsed: down 85% on the route-weighted index since 1970.

-85%Since 1970TrendPercent 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 →
3Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
13YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Common Gallinule in Eastern Tallgrass Prairie. See the full index history below.

Routes In Eastern Tallgrass Prairie

Routes recording Common Gallinule in Eastern Tallgrass Prairie.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
New LenoxILLINOIS11981
ChandlervillILLINOIS11986
GaryINDIANA11984

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