Species · BCR 35 · BBS 2025 Release · 1966–2024
Montezuma Quail In Chihuahuan Desert
Montezuma Quail in Chihuahuan Desert has declined: down 27% on the route-weighted index since 1987.
-27%Since 1987
7Routes In Region
21Years
Notable Signals
No notable trend signals for Montezuma Quail in Chihuahuan Desert. See the full index history below.
Forecast
If the recent trend holds, Montezuma Quail in Chihuahuan Desert is projected to fall about 100% by 2028 — from 0.06 in 2023 to a central estimate of 0.00 (95% range 0.00–0.37). A 5-year backtest shows a typical error of ±60.4%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2028
0.00Projected 2028 index
0.00–0.3795% range
±60.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.02 | 0.00 | 0.39 |
| 2025 | 0.01 | 0.00 | 0.39 |
| 2026 | 0.01 | 0.00 | 0.38 |
| 2027 | 0.00 | 0.00 | 0.38 |
| 2028 | 0.00 | 0.00 | 0.37 |
Routes In Chihuahuan Desert
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.