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

Common Yellowthroat In Coastal California

Common Yellowthroat in Coastal California has surged: up 20× on the route-weighted index since 1970.

20×Since 1970
67Routes In Region
55Years

Notable Signals

long arc increasecomputed index

Common Yellowthroat has surged in Coastal California: up 20× on the route-weighted index since 1970.

Forecast

If the recent trend holds, Common Yellowthroat in Coastal California is projected to fall about 35% by 2029 — from 1.9 in 2024 to a central estimate of 1.2 (95% range 0.36–2.1). A 5-year backtest shows a typical error of ±30.8%, with 100% of held-out values landing inside the 95% band.

-35%Change by 2029
1.2Projected 2029 index
0.362.195% range
±30.8%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
20251.20.312.0
20261.20.322.0
20271.20.342.1
20281.20.352.1
20291.20.362.1

Routes In Coastal California

Routes recording Common Yellowthroat in Coastal California.
Jofegan 2CALIFORNIA272024
Ora LomaCALIFORNIA172024
Cp. PendletonCALIFORNIA152004
Staten Is.CALIFORNIA92024
PowayCALIFORNIA71980
South LakeCALIFORNIA72006
MorenoCALIFORNIA62024
JofeganCALIFORNIA62023
Harbor Lake 2CALIFORNIA62024
Foster ParkCALIFORNIA51994
San YsidroCALIFORNIA52019
Point ReyesCALIFORNIA52023
AthloneCALIFORNIA51979
FairfaxCALIFORNIA32024
El ToroCALIFORNIA31999
Cuyamaca PkCALIFORNIA32024
Elizabeth LkCALIFORNIA32016
GlennCALIFORNIA32022
GreenfieldCALIFORNIA32024
Lake Hemet 2CALIFORNIA32018
Anza 2CALIFORNIA32024
HollisterCALIFORNIA22007
Morro BayCALIFORNIA22019
OrlandCALIFORNIA22019
Mesa GrandeCALIFORNIA22024

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