BirdAnalyst
Species · BCR 3 · BBS 2025 Release · 1966–2024

White-crowned Sparrow In BCR 3

All regionsBCR 3Generalists

White-crowned Sparrow in BCR 3 has surged: up 213% on the route-weighted index since 1995.

+213%Since 1995
4Routes In Region
31Years

Notable Signals

long arc increasecomputed index

White-crowned Sparrow has surged in BCR 3: up 213% on the route-weighted index since 1995.

Forecast

If the recent trend holds, White-crowned Sparrow in BCR 3 is projected to rise about 63% by 2029 — from 35 in 2024 to a central estimate of 57 (95% range 38–76). A 5-year backtest shows a typical error of ±22.4%, with 100% of held-out values landing inside the 95% band.

+63%Change by 2029
57Projected 2029 index
38–7695% range
±22.4%Backtest error
19932029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
2025523371
2026543473
2027553674
2028563775
2029573876

Routes In BCR 3

Routes recording White-crowned Sparrow in BCR 3.
Dietrich CmpALASKA632024
Galbraith L.ALASKA442024
Red DogALASKA202024
Happy ValleyALASKA142024

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