BirdAnalyst
Species · BCR 15 · BBS 2025 Release · 1966–2024

Hutton's Vireo In Sierra Nevada

All regionsSierra NevadaForest birds

Hutton's Vireo in Sierra Nevada has risen sharply: up 62% on the route-weighted index since 1972.

+62%Since 1972
25Routes In Region
51Years

Notable Signals

long arc increasecomputed index

Hutton's Vireo has risen sharply in Sierra Nevada: up 62% on the route-weighted index since 1972.

Forecast

If the recent trend holds, Hutton's Vireo in Sierra Nevada is projected to rise about 965% by 2029 — from 0.21 in 2024 to a central estimate of 2.2 (95% range 0.72–3.8). A 5-year backtest shows a typical error of ±374.1%, with 40% of held-out values landing inside the 95% band.

+965%Change by 2029
2.2Projected 2029 index
0.72–3.895% range
±374.1%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
20252.10.583.6
20262.10.623.7
20272.20.653.7
20282.20.693.7
20292.20.723.8

Routes In Sierra Nevada

Routes recording Hutton's Vireo in Sierra Nevada.
CoultervilleCALIFORNIA92019
Forest HillCALIFORNIA82022
Silver CityCALIFORNIA72013
Forest Hill 2CALIFORNIA62005
Eagle LakeCALIFORNIA22022
WestvilleCALIFORNIA22022
Kings CanyonCALIFORNIA22013
Tuolumne GroveCALIFORNIA22023
Hat CreekCALIFORNIA22014
Meadow ValleyCALIFORNIA22019
Cottage SpgsCALIFORNIA11971
Bass LakeCALIFORNIA12019
LumberyardCALIFORNIA12019
SattleyCALIFORNIA12017
Butte MeadowCALIFORNIA12013
Higgins CornCALIFORNIA12024
DownievilleCALIFORNIA12024
RivertonCALIFORNIA12019
LakeshoreCALIFORNIA12000
Tahoe NfCALIFORNIA11993
PaxtonCALIFORNIA12022
Pollock PinesCALIFORNIA12022
PlacervilleCALIFORNIA12024
WawonaCALIFORNIA12024
StrawberryCALIFORNIA12019

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