Species · BCR 16 · BBS 2025 Release · 1966–2024

Chihuahuan Raven In Southern Rockies / Colorado Plateau

Chihuahuan Raven in Southern Rockies / Colorado Plateau has declined: down 44% on the route-weighted index since 1981.

-44%Since 1981
12Routes In Region
41Years

Notable Signals

No notable trend signals for Chihuahuan Raven in Southern Rockies / Colorado Plateau. See the full index history below.

Forecast

If the recent trend holds, Chihuahuan Raven in Southern Rockies / Colorado Plateau is projected to rise about 203% by 2029 — from 0.11 in 2024 to a central estimate of 0.33 (95% range 0.00–1.0). A 5-year backtest shows a typical error of ±911.7%, with 100% of held-out values landing inside the 95% band.

+203%Change by 2029
0.33Projected 2029 index
0.001.095% range
±911.7%Backtest error
19732029
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
20250.350.001.1
20260.340.001.0
20270.340.001.0
20280.330.001.0
20290.330.001.0

Routes In Southern Rockies / Colorado Plateau

Routes recording Chihuahuan Raven in Southern Rockies / Colorado Plateau.
MountainairNEW-MEXICO132023
PasturaNEW-MEXICO102024
Claunch 2NEW-MEXICO92014
The GapARIZONA71973
ValenciaNEW-MEXICO71997
Corona EastNEW-MEXICO71995
ClaunchNEW-MEXICO61999
TorreonNEW-MEXICO52013
GardnerCOLORADO22024
Fence LakeNEW-MEXICO12024
Horse MtnNEW-MEXICO12024
Gallo ArroyoNEW-MEXICO12021

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