BirdAnalyst
Species · Montana · BBS 2025 Release · 1966–2024

White-winged Crossbill Population Trend in Montana

All statesGeneralists

White-winged Crossbill in Montana has declined: down 46% on the route-weighted index since 1991.

-46%Since 1991TrendPercent 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 →
5Routes 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 →
14YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable White-winged Crossbill Trends in MontanaNotable 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 White-winged Crossbill in Montana. See the full index history below.

White-winged Crossbill Survey Routes in Montana

Routes recording White-winged Crossbill in Montana.
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 →
Whitefish Lake220212021
Inside Road120221998
Libby Dam119911988
Logan Pass120131992
Swan Lake120242024

White-winged Crossbill Population Trend in Other States

alaskacoloradoidahomainemichiganminnesotanew-hampshirenew-yorkvermontwashingtonwisconsinwyoming

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