BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Anna's Hummingbird In Great Basin

All regionsGreat BasinGeneralists

Anna's Hummingbird in Great Basin has increased: up 34% on the route-weighted index since 1984.

+34%Since 1984
20Routes In Region
36Years

Notable Signals

No notable trend signals for Anna's Hummingbird in Great Basin. See the full index history below.

Forecast

If the recent trend holds, Anna's Hummingbird in Great Basin is projected to stay roughly flat through 2029, near 0.04 (95% range 0.01–0.07). A 5-year backtest shows a typical error of ±56.8%, with 60% of held-out values landing inside the 95% band.

n/aChange by 2029
0.04Projected 2029 index
0.01–0.0795% range
±56.8%Backtest error
19732029
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
20250.030.010.06
20260.040.010.06
20270.040.010.07
20280.040.010.07
20290.040.010.07

Routes In Great Basin

Routes recording Anna's Hummingbird in Great Basin.
BartleCALIFORNIA32015
Iron GateCALIFORNIA32019
NubieberCALIFORNIA22018
DorrisCALIFORNIA21984
Clear Lk ResCALIFORNIA21993
ConcreteWASHINGTON22017
MacdoelCALIFORNIA12008
Deep SpringsCALIFORNIA12010
TionestaCALIFORNIA12006
Fall River MillsCALIFORNIA12010
Medicine Mtn.CALIFORNIA12006
Desert NwrNEVADA12014
Modoc PointOREGON12010
Mt HoodOREGON12022
Badger CreekOREGON12015
TwispWASHINGTON12024
SnowdenWASHINGTON12018
KendallWASHINGTON12024
YakimaWASHINGTON12021
Lake ChelanWASHINGTON12023

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