BirdAnalyst
Species · BCR 32 · BBS 2025 Release · 1966–2024

Townsend's Solitaire In Coastal California

All regionsCoastal CaliforniaForest birds

Townsend's Solitaire in Coastal California has collapsed: down 84% on the route-weighted index since 1972.

-84%Since 1972
20Routes In Region
48Years

Notable Signals

long arc declinecomputed index

Townsend's Solitaire has collapsed in Coastal California: down 84% on the route-weighted index since 1972.

Forecast

If the recent trend holds, Townsend's Solitaire in Coastal California is projected to stay roughly flat through 2027, near 0.04 (95% range 0.00–0.19). A 5-year backtest shows a typical error of ±143.3%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2027
0.04Projected 2027 index
0.00–0.1995% range
±143.3%Backtest error
19702027
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20230.040.000.20
20240.040.000.20
20250.040.000.20
20260.040.000.19
20270.040.000.19

Routes In Coastal California

Routes recording Townsend's Solitaire in Coastal California.
ValyermoCALIFORNIA102016
Angelus OaksCALIFORNIA52012
Hough SpringsCALIFORNIA32006
Mt PinosCALIFORNIA11987
Oak GroveCALIFORNIA11976
Big BearCALIFORNIA11981
TujungaCALIFORNIA11976
Lake HemetCALIFORNIA11986
FallsvaleCALIFORNIA11981
Mt BaldyCALIFORNIA12022
Green ValleyCALIFORNIA12018
White RiverCALIFORNIA11990
Mt Pinos 2CALIFORNIA12013
TehamaCALIFORNIA12014
Cleveland NfCALIFORNIA12000
Glen Ellen 2CALIFORNIA12010
Cal Hot SpgsCALIFORNIA12019
WoodlandsCALIFORNIA12018
TomheadCALIFORNIA12009
StonyfordCALIFORNIA12015

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.