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Species · Nevada · BBS 2025 Release · 1966–2024

Ladder-backed Woodpecker Population Trend in Nevada

All statesForest birds

Ladder-backed Woodpecker in Nevada has held roughly steady: down 2% on the route-weighted index since 1975.

-2%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 →
8Routes 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 →
33YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Ladder-backed Woodpecker Trends in NevadaNotable 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 Ladder-backed Woodpecker in Nevada. See the full index history below.

Ladder-backed Woodpecker Population Forecast in Nevada

If the recent trend holds, Ladder-backed Woodpecker in Nevada is projected to rise about 40% by 2029 — from 0.11 in 2024 to a central estimate of 0.15 (95% range 0.00–0.33). A 5-year backtest shows a typical error of ±31%, with 100% of held-out values landing inside the 95% band.

+40%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 →
0.15Projected 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 →
0.00–0.3395% 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 →
±31%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 →
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 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 →
20250.150.000.33
20260.150.000.33
20270.150.000.33
20280.150.000.33
20290.150.000.33

Ladder-backed Woodpecker Survey Routes in Nevada

Routes recording Ladder-backed Woodpecker in Nevada.
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 →
Silver Peak 2420192019
Nelson220231996
Meadow Vally220241997
Jean Lake119971975
Desert Nwr120241993
Hiko120071968
Caliente120181988
Alamo119691968

Ladder-backed Woodpecker Population Trend in Other States

arizonacaliforniacoloradokansasnew-mexicooklahomatexasutah

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