BirdAnalyst
Species · BCR 18 · BBS 2025 Release · 1966–2024

Lewis's Woodpecker In Shortgrass Prairie

All regionsShortgrass PrairieForest birds

Lewis's Woodpecker in Shortgrass Prairie has edged down: down 23% on the route-weighted index since 1987.

-23%Since 1987TrendPercent 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 →
11Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
25YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable 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 Lewis's Woodpecker in Shortgrass Prairie. See the full index history below.

Lewis's Woodpecker In Shortgrass Prairie Population Forecast

If the recent trend holds, Lewis's Woodpecker in Shortgrass Prairie is projected to stay roughly flat through 2029, near 0.01 (95% range 0.00–0.08). A 5-year backtest shows a typical error of ±42.8%, with 100% of held-out values landing inside the 95% band.

n/aChange 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 →
0.01Projected 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 →
0.00–0.0895% 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 →
±42.8%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, Lewis's Woodpecker in Shortgrass Prairie is projected to stay roughly flat through 2029, near 0.01 (95% range 0.00–0.08). A 5-year backtest shows a typical error of ±42.8%, with 100% of held-out values landing inside the 95% band.19712029
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 →
20250.010.000.09
20260.010.000.09
20270.010.000.09
20280.010.000.08
20290.010.000.08

Routes In Shortgrass Prairie

Routes recording Lewis's Woodpecker in Shortgrass Prairie.
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 →
NinaviewCOLORADO32024
Doyle BridgeCOLORADO21994
Mica ButteCOLORADO11982
CrowleyCOLORADO12008
TrincheraCOLORADO12014
VillegreenCOLORADO12004
Cone MtnCOLORADO12002
ElbertCOLORADO12024
Doyle Bridge 2COLORADO12008
CrawfordNEBRASKA12001
FarleyNEW-MEXICO11990

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