BirdAnalyst
Species · BCR 10 · BBS 2025 Release · 1966–2024

White-crowned Sparrow In Northern Rockies

All regionsNorthern RockiesGeneralists

White-crowned Sparrow in Northern Rockies has edged up: up 12% on the route-weighted index since 1970.

+12%Since 1970
114Routes In Region
56Years

Notable Signals

No notable trend signals for White-crowned Sparrow in Northern Rockies. See the full index history below.

Forecast

If the recent trend holds, White-crowned Sparrow in Northern Rockies is projected to fall about 14% by 2029 — from 3.3 in 2024 to a central estimate of 2.9 (95% range 1.3–4.5). A 5-year backtest shows a typical error of ±35.8%, with 40% of held-out values landing inside the 95% band.

-14%Change by 2029
2.9Projected 2029 index
1.3–4.595% range
±35.8%Backtest error
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 index95% low95% high
20252.81.24.4
20262.81.24.4
20272.81.24.4
20282.91.34.5
20292.91.34.5

Routes In Northern Rockies

Routes recording White-crowned Sparrow in Northern Rockies.
Red RockMONTANA652024
YellowstoneWYOMING472022
Buckskin MtnWYOMING452021
Hebgen LakeMONTANA372024
ChestnutMONTANA332024
BeaverheadMONTANA332024
Soda LakeWYOMING322024
Big SandyWYOMING262024
Cape HornIDAHO252024
Hayden ValWYOMING241986
GoldenIDAHO232011
Bald MtnWYOMING222024
AlturasIDAHO191987
East Glacier ParkMONTANA192024
Colter Bay 2WYOMING182024
St. Mary 2MONTANA152024
Logan PassMONTANA152024
SulaMONTANA122024
SkalkahoMONTANA121998
Ne EntranceWYOMING122021
MooseWYOMING122024
Hunter PeakWYOMING112024
St MaryMONTANA102008
Sawtooth City 2IDAHO92024
MammothWYOMING92024

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