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Species · Wyoming · BBS 2025 Release · 1966–2024

Downy Woodpecker Population Trend in Wyoming

All statesForest birds

Downy Woodpecker in Wyoming has fallen sharply: down 68% on the route-weighted index since 1975.

-68%Since 1975TrendPercent 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 →
46Routes 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 →
51YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

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

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Downy Woodpecker has fallen sharply in Wyoming: down 68% on the route-weighted index since 1975.

Downy Woodpecker Population Forecast in Wyoming

If the recent trend holds, Downy Woodpecker in Wyoming is projected to fall about 98% by 2029 — from 0.06 in 2024 to a central estimate of 0.00 (95% range 0.00–0.19). A 5-year backtest shows a typical error of ±66.1%, with 100% of held-out values landing inside the 95% band.

-98%Change by 2029TrendPercent 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 →
0.00Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.1995% 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 →
±66.1%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, Downy Woodpecker in Wyoming is projected to fall about 98% by 2029 — from 0.06 in 2024 to a central estimate of 0.00 (95% range 0.00–0.19). A 5-year backtest shows a typical error of ±66.1%, with 100% of held-out values landing inside the 95% band.19692029
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 →
20250.020.000.21
20260.010.000.20
20270.010.000.20
20280.010.000.20
20290.000.000.19

Downy Woodpecker Survey Routes in Wyoming

Routes recording Downy Woodpecker in Wyoming.
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 →
Fox Park720191996
Hunter Peak320101983
Wilson319921979
Lovell219951995
Crowheart220212021
Seedskadee219931993
Moskee 2220172003
Ne Entrance119911991
Wyarno120242003
Prior Flats120212021
Sundance120241975
Colter Bay119971989
Dubois120231969
Midvale120172017
Redbird119791977
Fontenelle120042004
Bear Creek120142014
Brookhurst120111994
Seely 2120152007
Buford119761976
Yoder120111971
Mammoth120231987
Clark120011992
Moose120221979
Meeteetse120161997

Downy Woodpecker Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsin

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