Species · BCR 15 · BBS 2025 Release · 1966–2024
Black-chinned Hummingbird In Sierra Nevada
Black-chinned Hummingbird in Sierra Nevada has fallen sharply: down 52% on the route-weighted index since 1975.
-52%Since 1975
6Routes In Region
17Years
Notable Signals
long arc declinecomputed index
Black-chinned Hummingbird has fallen sharply in Sierra Nevada: down 52% on the route-weighted index since 1975.
Routes In Sierra Nevada
| Bass Lake | CALIFORNIA | 1 | 2017 |
| Greenhorn Mt | CALIFORNIA | 1 | 1974 |
| Silver City | CALIFORNIA | 1 | 2005 |
| Kings Canyon | CALIFORNIA | 1 | 1995 |
| Lakeshore | CALIFORNIA | 1 | 1981 |
| Kernville | CALIFORNIA | 1 | 2008 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.