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

Anna's Hummingbird In Sonoran and Mojave Deserts

All regionsSonoran and Mojave DesertsGeneralists

Anna's Hummingbird in Sonoran and Mojave Deserts has held roughly steady: down 9% on the route-weighted index since 1973.

-9%Since 1973
32Routes In Region
45Years

Notable Signals

No notable trend signals for Anna's Hummingbird in Sonoran and Mojave Deserts. See the full index history below.

Forecast

If the recent trend holds, Anna's Hummingbird in Sonoran and Mojave Deserts is projected to rise about 117% by 2029 — from 0.13 in 2024 to a central estimate of 0.29 (95% range 0.03–0.54). A 5-year backtest shows a typical error of ±87.8%, with 80% of held-out values landing inside the 95% band.

+117%Change by 2029
0.29Projected 2029 index
0.03–0.5495% range
±87.8%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
20250.270.020.53
20260.280.020.53
20270.280.030.54
20280.280.030.54
20290.290.030.54

Routes In Sonoran and Mojave Deserts

Routes recording Anna's Hummingbird in Sonoran and Mojave Deserts.
PearblossomCALIFORNIA72019
Cutter 2ARIZONA52018
Red Rock 2ARIZONA42019
OnyxCALIFORNIA31998
WikieupARIZONA22017
New RiverARIZONA22009
Alamo RiverCALIFORNIA22018
Kelso ValleyCALIFORNIA22022
Joshua Tree 2CALIFORNIA22016
OatmanARIZONA12022
QuartzsiteARIZONA12015
LagunaARIZONA12008
DatelandARIZONA12021
RivieraARIZONA12024
ArabyARIZONA12023
Red RockARIZONA12014
WickenburgARIZONA12018
HopeARIZONA12009
Casa GrandeARIZONA12022
Ajo 2ARIZONA12019
Cactus ForestARIZONA12024
Organ PipeARIZONA12021
Willow Beach 2ARIZONA12024
Hope 2ARIZONA12017
Palo VerdeCALIFORNIA12022

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