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

American Coot Population Trend in Washington

All statesWetland birds

American Coot in Washington has fallen sharply: down 55% on the route-weighted index since 1970.

-55%Since 1970
39Routes In State
56Years

Notable American Coot Trends in Washington

long arc declinecomputed index

American Coot has fallen sharply in Washington: down 55% on the route-weighted index since 1970.

American Coot Population Forecast in Washington

If the recent trend holds, American Coot in Washington is projected to rise about 481% by 2029 — from 0.14 in 2024 to a central estimate of 0.81 (95% range 0.00–3.3). A 5-year backtest shows a typical error of ±586.6%, with 100% of held-out values landing inside the 95% band.

+481%Change by 2029
0.81Projected 2029 index
0.00–3.395% range
±586.6%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
20250.850.003.3
20260.840.003.3
20270.830.003.3
20280.820.003.3
20290.810.003.3

American Coot Survey Routes in Washington

Routes recording American Coot in Washington.
Brewster1420181977
Othello919911981
Wapato819951972
Warm Beach719931983
Tonasket720181982
Harrington420121974
Moses Lake320071974
Mendota 2319931993
Curlew319941992
Laurier320171997
Turnbull Nwr220231993
L Pend O Nwr220241996
Connell219911974
Asotin220022002
Ewan220191983
Omak Creek220242007
Moses Coulee220231999
Odessa220181993
Carnation219961996
Mendota 3220062006
Port Angeles120101973
Hanford Site119881988
Twisp120241980
Chewelah120081983
Ewan 2120242024

American Coot Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradoconnecticutfloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamichiganminnesotamississippimissourimontananebraskanevadanew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniasouth-dakotatennesseetexasutahvermontwest-virginiawisconsinwyoming

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