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

Lesser Nighthawk In Coastal California

All regionsCoastal CaliforniaAerial insectivores

Lesser Nighthawk in Coastal California has declined: down 27% on the route-weighted index since 1970.

-27%Since 1970
22Routes In Region
52Years

Notable Signals

No notable trend signals for Lesser Nighthawk in Coastal California. See the full index history below.

Forecast

If the recent trend holds, Lesser Nighthawk in Coastal California is projected to fall about 17% by 2029 — from 0.11 in 2024 to a central estimate of 0.09 (95% range 0.00–0.23). A 5-year backtest shows a typical error of ±193.7%, with 100% of held-out values landing inside the 95% band.

-17%Change by 2029
0.09Projected 2029 index
0.00–0.2395% range
±193.7%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
20250.090.000.24
20260.090.000.24
20270.090.000.24
20280.090.000.23
20290.090.000.23

Routes In Coastal California

Routes recording Lesser Nighthawk in Coastal California.
RumseyCALIFORNIA62008
AtwaterCALIFORNIA52004
CopperopolisCALIFORNIA41994
Cuyamaca PkCALIFORNIA32024
Ora LomaCALIFORNIA31981
PenningtonCALIFORNIA21976
MaricopaCALIFORNIA22024
AnzaCALIFORNIA22003
VentucopaCALIFORNIA22002
OrovilleCALIFORNIA22006
HughsonCALIFORNIA12016
GravesboroCALIFORNIA11995
BakersfieldCALIFORNIA12005
Oak GroveCALIFORNIA12023
CoalingaCALIFORNIA11990
Lake SuccessCALIFORNIA11976
CohassetCALIFORNIA11991
OrlandCALIFORNIA12011
Mesa GrandeCALIFORNIA12000
JacumbaCALIFORNIA12023
ArvinCALIFORNIA11985
TranquillityCALIFORNIA11986

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