BirdAnalyst
Species · BCR 12 · BBS 2026 Release · 1966–2025

White-winged Crossbill In Boreal Hardwood Transition

All regionsBoreal Hardwood TransitionForest birds

White-winged Crossbill in Boreal Hardwood Transition has surged: up 159% on the route-weighted index since 1978.

+159%Since 1978TrendPercent 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 →
39Routes 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 →
37YearsYears 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 White-winged Crossbill in Boreal Hardwood Transition. See the full index history below.

White-winged Crossbill In Boreal Hardwood Transition Population Forecast

If the recent trend holds, White-winged Crossbill in Boreal Hardwood Transition is projected to stay roughly flat through 2030, near 0.10 (95% range 0.00–0.52). A 5-year backtest shows a typical error of ±275.3%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2030TrendPercent 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 →
0.10Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.5295% 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 →
±275.3%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, White-winged Crossbill in Boreal Hardwood Transition is projected to stay roughly flat through 2030, near 0.10 (95% range 0.00–0.52). A 5-year backtest shows a typical error of ±275.3%, with 100% of held-out values landing inside the 95% band.19692030
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 →
20260.110.000.53
20270.110.000.53
20280.100.000.52
20290.100.000.52
20300.100.000.52

Routes In Boreal Hardwood Transition

Routes recording White-winged Crossbill in Boreal Hardwood Transition.
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 →
Gibbs CityMICHIGAN351987
LudeMINNESOTA202006
Union TwpWISCONSIN102008
Red LakeMINNESOTA82000
Brocky LakeMICHIGAN72015
Grand ViewWISCONSIN71987
BootjackMICHIGAN62007
BerglandMICHIGAN52016
Washington IWISCONSIN41996
Little ForkMINNESOTA31996
Imp LakeMICHIGAN22019
Seney NwrMICHIGAN22007
CromwellMINNESOTA22025
Sawbill CampMINNESOTA22019
GlendaleMINNESOTA22021
Land O LakesWISCONSIN22009
PhillipsWISCONSIN21988
McnaughtonWISCONSIN21997
ShingletonMICHIGAN12012
MuskallongeMICHIGAN12016
GilchristMICHIGAN12010
Pine RiverMICHIGAN12007
Hiawatha NfMICHIGAN11992
Betchler LksMICHIGAN12004
SidnawMICHIGAN12015

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.