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

Red-winged Blackbird In Sonoran and Mojave Deserts

All regionsSonoran and Mojave DesertsGeneralists

Red-winged Blackbird in Sonoran and Mojave Deserts has declined: down 38% on the route-weighted index since 1970.

-38%Since 1970
51Routes In Region
56Years

Notable Signals

No notable trend signals for Red-winged Blackbird in Sonoran and Mojave Deserts. See the full index history below.

Forecast

If the recent trend holds, Red-winged Blackbird in Sonoran and Mojave Deserts is projected to rise about 24% by 2029 — from 51 in 2024 to a central estimate of 64 (95% range 0.00–219). A 5-year backtest shows a typical error of ±27.2%, with 100% of held-out values landing inside the 95% band.

+24%Change by 2029
64Projected 2029 index
0.00–21995% range
±27.2%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
2025740.00230
2026720.00227
2027690.00224
2028660.00221
2029640.00219

Routes In Sonoran and Mojave Deserts

Routes recording Red-winged Blackbird in Sonoran and Mojave Deserts.
BrawleyCALIFORNIA14432012
Palo VerdeCALIFORNIA5952024
LagunaARIZONA5672023
Imperial DamCALIFORNIA3632010
NilandCALIFORNIA3612024
ArabyARIZONA3222023
Palo VerdeARIZONA3052013
Alamo RiverCALIFORNIA2152018
Cactus ForestARIZONA1922024
Palo Verde 2ARIZONA1292024
Red Rock 2ARIZONA1012024
Hope 2ARIZONA922018
DatelandARIZONA832024
Casa GrandeARIZONA662023
CoolidgeARIZONA631985
Red RockARIZONA542014
Cibola LakeARIZONA342024
Parker DamCALIFORNIA302007
PearblossomCALIFORNIA262024
HopeARIZONA182009
BlytheCALIFORNIA172003
FlorenceARIZONA161988
Willow Beach 2ARIZONA112018
VicksburgARIZONA81989
Kelso ValleyCALIFORNIA82024

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