Species · California · BBS 2025 Release · 1966–2024
Broad-tailed Hummingbird Population Trend in California
Broad-tailed Hummingbird in California has edged down: down 21% on the route-weighted index since 1976.
-21%Since 1976
4Routes In State
28Years
Notable Broad-tailed Hummingbird Trends in California
No notable trend signals for Broad-tailed Hummingbird in California. See the full index history below.
Broad-tailed Hummingbird Population Forecast in California
If the recent trend holds, Broad-tailed Hummingbird in California is projected to stay roughly flat through 2026, near 0.02 (95% range 0.00–0.05). A 5-year backtest shows a typical error of ±111.5%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2026
0.02Projected 2026 index
0.00–0.0595% range
±111.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2022 | 0.02 | 0.00 | 0.05 |
| 2023 | 0.02 | 0.00 | 0.05 |
| 2024 | 0.02 | 0.00 | 0.05 |
| 2025 | 0.02 | 0.00 | 0.05 |
| 2026 | 0.02 | 0.00 | 0.05 |
Broad-tailed Hummingbird Survey Routes in California
| Big Pine | 2 | 1991 | 1976 |
| Deep Springs | 1 | 2021 | 1972 |
| Green Valley | 1 | 1971 | 1971 |
| Bartle | 1 | 1977 | 1977 |
Broad-tailed Hummingbird Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.