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

House Finch In Coastal California

All regionsCoastal CaliforniaGeneralists

House Finch in Coastal California has edged down: down 23% on the route-weighted index since 1970.

-23%Since 1970
121Routes In Region
56Years

Notable Signals

No notable trend signals for House Finch in Coastal California. See the full index history below.

Forecast

If the recent trend holds, House Finch in Coastal California is projected to fall about 24% by 2029 — from 58 in 2024 to a central estimate of 44 (95% range 28–60). A 5-year backtest shows a typical error of ±26.1%, with 20% of held-out values landing inside the 95% band.

-24%Change by 2029
44Projected 2029 index
28–6095% range
±26.1%Backtest error
19682029
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
2025463062
2026462962
2027452961
2028452861
2029442860

Routes In Coastal California

Routes recording House Finch in Coastal California.
ColmaCALIFORNIA2651972
ParkfieldCALIFORNIA1872024
CaruthersCALIFORNIA1741987
OrovilleCALIFORNIA1602024
PowayCALIFORNIA1531980
Tres Pinos 2CALIFORNIA1532011
WestleyCALIFORNIA1492024
HughsonCALIFORNIA1412024
TranquillityCALIFORNIA1382024
Santa Cruz ICALIFORNIA1291988
GravesboroCALIFORNIA1211995
LockwoodCALIFORNIA1192024
Harbor Lake 2CALIFORNIA1182024
GreenfieldCALIFORNIA1162024
SisquocCALIFORNIA1112014
Tres PinosCALIFORNIA1102003
Collegeville 2CALIFORNIA1082023
MorenoCALIFORNIA1052024
PenningtonCALIFORNIA1002024
GlennCALIFORNIA972023
San YsidroCALIFORNIA932019
Harbor LakeCALIFORNIA901991
LivermoreCALIFORNIA891991
El ToroCALIFORNIA881999
Orange CoveCALIFORNIA852016

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