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

Baird's Sparrow In Northern Rockies

All regionsNorthern RockiesGrassland birds

Baird's Sparrow in Northern Rockies has fallen sharply: down 67% on the route-weighted index since 1978.

-67%Since 1978
9Routes In Region
20Years

Notable Signals

long arc declinecomputed index

Baird's Sparrow has fallen sharply in Northern Rockies: down 67% on the route-weighted index since 1978.

Forecast

If the recent trend holds, Baird's Sparrow in Northern Rockies is projected to stay roughly flat through 2027, near 0.00 (95% range 0.00–0.14). A 5-year backtest shows a typical error of ±186.4%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2027
0.00Projected 2027 index
0.00–0.1495% range
±186.4%Backtest error
19722027
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
20230.010.000.15
20240.010.000.14
20250.010.000.14
20260.000.000.14
20270.000.000.14

Routes In Northern Rockies

Routes recording Baird's Sparrow in Northern Rockies.
Heart ButteMONTANA72019
ShirleyWYOMING42002
AugustaMONTANA22015
LaurelMONTANA21980
St MaryMONTANA12005
BoulderMONTANA12018
St. Mary 2MONTANA12009
Wolf CreekMONTANA12022
Mtn ViewWYOMING11980

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