BirdAnalyst
Species · BCR 4 · BBS 2025 Release · 1966–2024

Black-backed Woodpecker In BCR 4

All regionsBCR 4Forest birds

Black-backed Woodpecker in BCR 4 has surged: up 385% on the route-weighted index since 2002.

+385%Since 2002TrendPercent 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 →
16Routes 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 →
13YearsYears 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 →

long arc increasecomputed 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 →

Black-backed Woodpecker has surged in BCR 4: up 385% on the route-weighted index since 2002.

Routes In BCR 4

Routes recording Black-backed Woodpecker in BCR 4.
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 →
Seven LakesALASKA32017
CircleALASKA22013
Tower BluffsALASKA22022
NorthwayALASKA22022
Mt. FairplayALASKA22022
Mud RiverALASKA22004
Ft. RichrdsnALASKA22007
Birch LakeALASKA12022
LivengoodALASKA12021
SlanaALASKA12022
KalifonskyALASKA12022
Chena Hot Spring 2ALASKA12007
ColdfootALASKA12012
Donelly DomeALASKA12022
Hather CreekALASKA12003
Moose CreekALASKA12012

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