BirdAnalyst
Species · BCR 18 · BBS 2025 Release · 1966–2024

Western Bluebird In Shortgrass Prairie

All regionsShortgrass PrairieForest birds

Western Bluebird in Shortgrass Prairie has edged down: down 15% on the route-weighted index since 1998.

-15%Since 1998
7Routes In Region
28Years

Notable Signals

No notable trend signals for Western Bluebird in Shortgrass Prairie. See the full index history below.

Forecast

If the recent trend holds, Western Bluebird in Shortgrass Prairie is projected to fall about 33% by 2029 — from 0.22 in 2024 to a central estimate of 0.15 (95% range 0.01–0.28). A 5-year backtest shows a typical error of ±119.7%, with 100% of held-out values landing inside the 95% band.

-33%Change by 2029
0.15Projected 2029 index
0.01–0.2895% range
±119.7%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
20250.140.010.27
20260.140.010.27
20270.140.010.28
20280.140.010.28
20290.150.010.28

Routes In Shortgrass Prairie

Routes recording Western Bluebird in Shortgrass Prairie.
ElbertCOLORADO132024
Kiowa 2COLORADO52024
FarleyNEW-MEXICO51989
KiowaCOLORADO42015
VillegreenCOLORADO41998
TrincheraCOLORADO12022
Cooley LakeNEW-MEXICO11968

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