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Species · Washington · BBS 2026 Release · 1966–2025

Band-tailed Pigeon Population Trend in Washington

All statesForest birds

Band-tailed Pigeon in Washington has edged down: down 10% on the route-weighted index since 1970.

-10%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 →
52Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
57YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Band-tailed Pigeon Trends in WashingtonNotable 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 Band-tailed Pigeon in Washington. See the full index history below.

Band-tailed Pigeon Population Forecast in Washington

If the recent trend holds, Band-tailed Pigeon in Washington is projected to fall about 22% by 2030 — from 3.0 in 2025 to a central estimate of 2.3 (95% range 0.14–4.5). A 5-year backtest shows a typical error of ±50.5%, with 80% of held-out values landing inside the 95% band.

-22%Change by 2030TrendPercent 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 →
2.3Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.14–4.595% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±50.5%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Band-tailed Pigeon in Washington is projected to fall about 22% by 2030 — from 3.0 in 2025 to a central estimate of 2.3 (95% range 0.14–4.5). A 5-year backtest shows a typical error of ±50.5%, with 80% of held-out values landing inside the 95% band.19682030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20262.30.134.5
20272.30.134.5
20282.30.144.5
20292.30.144.5
20302.30.144.5

Band-tailed Pigeon Survey Routes in Washington

Routes recording Band-tailed Pigeon in Washington.
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 →
Raymond4120211993
Raymond 23820242022
Ozette3520251971
Montesand2520241987
Taholah2520221969
Greenwater2520252016
Carnation1620231988
Mukilteo1520251993
Port Angeles1120251970
Harrington1119721972
Ilwaco1020251975
Index919711968
Twisp819981975
Kamilche820251968
Bunker Hill820251968
South Elma820241975
Nighthawk820182018
Camas720081981
Pe Ell620251993
Cougar520211969
Neilton519751975
Rainier520251994
Mendota 3520252005
Vashon Is.420251995
Everett420251977

Band-tailed Pigeon Population Trend in Other States

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Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.