Species · BCR 34 · BBS 2025 Release · 1966–2024
Elegant Trogon In Sierra Madre Occidental
Elegant Trogon in Sierra Madre Occidental has fallen sharply: down 66% on the route-weighted index since 1980.
-66%Since 1980
4Routes In Region
23Years
Notable Signals
long arc declinecomputed index
Elegant Trogon has fallen sharply in Sierra Madre Occidental: down 66% on the route-weighted index since 1980.
Forecast
If the recent trend holds, Elegant Trogon in Sierra Madre Occidental is projected to stay roughly flat through 2028, near 0.01 (95% range 0.00–0.16). A 5-year backtest shows a typical error of ±67.2%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2028
0.01Projected 2028 index
0.00–0.1695% range
±67.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2024 | 0.03 | 0.00 | 0.17 |
| 2025 | 0.03 | 0.00 | 0.17 |
| 2026 | 0.02 | 0.00 | 0.16 |
| 2027 | 0.02 | 0.00 | 0.16 |
| 2028 | 0.01 | 0.00 | 0.16 |
Routes In Sierra Madre Occidental
| Patagonia | ARIZONA | 2 | 2019 |
| Peña Blanca | ARIZONA | 1 | 2009 |
| Portal | ARIZONA | 1 | 2023 |
| Sunizona 2 | ARIZONA | 1 | 2006 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.