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

Common Poorwill In Coastal California

All regionsCoastal CaliforniaAerial insectivores

Common Poorwill in Coastal California has risen sharply: up 54% on the route-weighted index since 1971.

+54%Since 1971
36Routes In Region
54Years

Notable Signals

long arc increasecomputed index

Common Poorwill has risen sharply in Coastal California: up 54% on the route-weighted index since 1971.

Forecast

If the recent trend holds, Common Poorwill in Coastal California is projected to stay roughly flat through 2029, near 0.13 (95% range 0.01–0.25). A 5-year backtest shows a typical error of ±50.4%, with 60% of held-out values landing inside the 95% band.

+2%Change by 2029
0.13Projected 2029 index
0.01–0.2595% range
±50.4%Backtest error
19692029
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
20250.130.010.25
20260.130.010.25
20270.130.010.25
20280.130.010.25
20290.130.010.25

Routes In Coastal California

Routes recording Common Poorwill in Coastal California.
Elsinore MtnCALIFORNIA62022
Big BearCALIFORNIA31983
Mt BaldyCALIFORNIA32024
Lockwood ValCALIFORNIA22012
Cuyamaca PkCALIFORNIA22024
Elizabeth LkCALIFORNIA21974
VentucopaCALIFORNIA22002
Mt Pinos 2CALIFORNIA22021
Bartlett SpsCALIFORNIA22018
Cleveland Nf 2CALIFORNIA22022
Hough SpringsCALIFORNIA22007
RumseyCALIFORNIA11981
Mt PinosCALIFORNIA12004
Oak GroveCALIFORNIA12023
CoalingaCALIFORNIA11975
Morro BayCALIFORNIA11980
PowayCALIFORNIA11975
FolsomCALIFORNIA12023
Sawmill MtnCALIFORNIA12022
TujungaCALIFORNIA12021
ValyermoCALIFORNIA11986
Green ValleyCALIFORNIA12018
Lake CachumaCALIFORNIA11982
JacumbaCALIFORNIA11994
TehamaCALIFORNIA11977

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