Species · BCR 32 · BBS 2025 Release · 1966–2024
Cedar Waxwing In Coastal California
Cedar Waxwing in Coastal California has collapsed: down 78% on the route-weighted index since 1971.
-78%Since 1971
12Routes In Region
24Years
Notable Signals
long arc declinecomputed index
Cedar Waxwing has collapsed in Coastal California: down 78% on the route-weighted index since 1971.
Forecast
If the recent trend holds, Cedar Waxwing in Coastal California is projected to fall about 24% by 2029 — from 0.70 in 2024 to a central estimate of 0.53 (95% range 0.00–2.0). A 5-year backtest shows a typical error of ±1265.2%, with 100% of held-out values landing inside the 95% band.
-24%Change by 2029
0.53Projected 2029 index
0.00–2.095% range
±1265.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.56 | 0.00 | 2.1 |
| 2026 | 0.55 | 0.00 | 2.0 |
| 2027 | 0.55 | 0.00 | 2.0 |
| 2028 | 0.54 | 0.00 | 2.0 |
| 2029 | 0.53 | 0.00 | 2.0 |
Routes In Coastal California
| Red Bluff | CALIFORNIA | 33 | 2024 |
| Gold Hill | CALIFORNIA | 30 | 2010 |
| Yolla Bolly | CALIFORNIA | 24 | 2002 |
| Calpella | CALIFORNIA | 20 | 1968 |
| Orange Cove | CALIFORNIA | 20 | 1989 |
| Fairfax | CALIFORNIA | 20 | 1990 |
| Santa Ynez | CALIFORNIA | 12 | 2002 |
| Auburn | CALIFORNIA | 5 | 1977 |
| Glen Ellen | CALIFORNIA | 4 | 1991 |
| Staten Is. | CALIFORNIA | 3 | 1997 |
| Tujunga | CALIFORNIA | 2 | 1970 |
| Folsom | CALIFORNIA | 1 | 2023 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.