BirdAnalyst
Species · BCR 33 · BBS 2025 Release · 1966–2024

Ladder-backed Woodpecker In Sonoran and Mojave Deserts

All regionsSonoran and Mojave DesertsForest birds

Ladder-backed Woodpecker in Sonoran and Mojave Deserts has held roughly steady: down 5% on the route-weighted index since 1970.

-5%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 →
62Routes 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 →
56YearsYears 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 Ladder-backed Woodpecker in Sonoran and Mojave Deserts. See the full index history below.

Ladder-backed Woodpecker In Sonoran and Mojave Deserts Population Forecast

If the recent trend holds, Ladder-backed Woodpecker in Sonoran and Mojave Deserts is projected to rise about 78% by 2029 — from 0.77 in 2024 to a central estimate of 1.4 (95% range 0.67–2.1). A 5-year backtest shows a typical error of ±34.9%, with 100% of held-out values landing inside the 95% band.

+78%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 →
1.4Projected 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 →
0.67–2.195% 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 →
±34.9%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, Ladder-backed Woodpecker in Sonoran and Mojave Deserts is projected to rise about 78% by 2029 — from 0.77 in 2024 to a central estimate of 1.4 (95% range 0.67–2.1). A 5-year backtest shows a typical error of ±34.9%, with 100% of held-out values landing inside the 95% band.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 →
20251.30.622.0
20261.30.642.0
20271.30.652.0
20281.40.662.0
20291.40.672.1

Routes In Sonoran and Mojave Deserts

Routes recording Ladder-backed Woodpecker in Sonoran and Mojave Deserts.
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 →
CimaCALIFORNIA112021
Bates WellARIZONA92023
Cibola LakeARIZONA72024
Ajo 2ARIZONA72019
Squaw PeakARIZONA61969
Coachella CnCALIFORNIA62013
DatelandARIZONA42015
ArabyARIZONA42023
Red RockARIZONA42014
Cutter 2ARIZONA42018
Anza BorregoCALIFORNIA42024
Silver Peak 2NEVADA42019
Organ PipeARIZONA32023
IvanpahCALIFORNIA32019
FlynnCALIFORNIA31996
New RiverARIZONA22016
AjoARIZONA22008
Gila BendARIZONA22019
Cabeza PrietARIZONA22024
WickenburgARIZONA22023
Casa GrandeARIZONA22022
Cactus ForestARIZONA22022
Red Rock 2ARIZONA22024
GoldstoneCALIFORNIA22006
BarstowCALIFORNIA21997

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