BirdAnalyst
Species · Kansas · BBS 2025 Release · 1966–2024

Ring-billed Gull Population Trend in Kansas

All statesWetland birds

Ring-billed Gull in Kansas has collapsed: down 95% on the route-weighted index since 1970.

-95%Since 1970
3Routes In State
19Years

Notable Ring-billed Gull Trends in Kansas

long arc declinecomputed index

Ring-billed Gull has collapsed in Kansas: down 95% on the route-weighted index since 1970.

Ring-billed Gull Population Forecast in Kansas

If the recent trend holds, Ring-billed Gull in Kansas is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–1.4). A 5-year backtest shows a typical error of ±586.7%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.00Projected 2029 index
0.00–1.495% range
±586.7%Backtest error
19682029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20250.000.001.4
20260.000.001.4
20270.000.001.4
20280.000.001.4
20290.000.001.4

Ring-billed Gull Survey Routes in Kansas

Routes recording Ring-billed Gull in Kansas.
Rock Creek520032003
Goessel120102010
Albert120241968

Ring-billed Gull Population Trend in Other States

alabamaarizonacaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakentuckylouisianamainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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