BirdAnalyst
Species · BCR 33 · BBS 2025 Release · 1966–2024

Chukar In Sonoran and Mojave Deserts

All regionsSonoran and Mojave DesertsGeneralists

Chukar in Sonoran and Mojave Deserts has surged: up 573% on the route-weighted index since 1974.

+573%Since 1974
18Routes In Region
43Years

Notable Signals

long arc increasecomputed index

Chukar has surged in Sonoran and Mojave Deserts: up 573% on the route-weighted index since 1974.

Forecast

If the recent trend holds, Chukar in Sonoran and Mojave Deserts is projected to fall about 58% by 2029 — from 1.6 in 2024 to a central estimate of 0.68 (95% range 0.00–2.2). A 5-year backtest shows a typical error of ±537%, with 100% of held-out values landing inside the 95% band.

-58%Change by 2029
0.68Projected 2029 index
0.00–2.295% range
±537%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
20250.650.002.2
20260.660.002.2
20270.670.002.2
20280.670.002.2
20290.680.002.2

Routes In Sonoran and Mojave Deserts

Routes recording Chukar in Sonoran and Mojave Deserts.
BeattyNEVADA322024
Jean LakeNEVADA152009
InyokernCALIFORNIA122024
GoldstoneCALIFORNIA82006
Haiwee ResCALIFORNIA72005
Ft IrwinCALIFORNIA51979
Eureka ValCALIFORNIA42024
Willow SpgsCALIFORNIA31974
DarwinCALIFORNIA32005
OnyxCALIFORNIA21997
Greenwater VCALIFORNIA22018
Joshua Tree 2CALIFORNIA22014
WildroseCALIFORNIA12005
Valley WellsCALIFORNIA12016
TronaCALIFORNIA11995
Lucerne ValCALIFORNIA11999
Lone PineCALIFORNIA12011
Kelso ValleyCALIFORNIA12014

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