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

Oak Titmouse In Sierra Nevada

All regionsSierra NevadaForest birds

Oak Titmouse in Sierra Nevada has fallen sharply: down 58% on the route-weighted index since 1971.

-58%Since 1971
20Routes In Region
55Years

Notable Signals

long arc declinecomputed index

Oak Titmouse has fallen sharply in Sierra Nevada: down 58% on the route-weighted index since 1971.

Forecast

If the recent trend holds, Oak Titmouse in Sierra Nevada is projected to stay roughly flat through 2029, near 1.6 (95% range 0.00–4.2). A 5-year backtest shows a typical error of ±97.8%, with 100% of held-out values landing inside the 95% band.

-0%Change by 2029
1.6Projected 2029 index
0.00–4.295% range
±97.8%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
20251.70.004.3
20261.70.004.3
20271.70.004.3
20281.60.004.2
20291.60.004.2

Routes In Sierra Nevada

Routes recording Oak Titmouse in Sierra Nevada.
Silver CityCALIFORNIA542013
Bass LakeCALIFORNIA382019
Higgins CornCALIFORNIA252024
Greenhorn MtCALIFORNIA172008
KernvilleCALIFORNIA102008
Forest HillCALIFORNIA42014
CoultervilleCALIFORNIA42019
WawonaCALIFORNIA42024
LakeshoreCALIFORNIA22009
PlacervilleCALIFORNIA21997
Forest Hill 2CALIFORNIA22005
Cottage SpgsCALIFORNIA11975
JohnsvilleCALIFORNIA11984
WoodfordsCALIFORNIA12024
LumberyardCALIFORNIA11976
Kings CanyonCALIFORNIA12024
Tuolumne GroveCALIFORNIA12022
DownievilleCALIFORNIA12007
Pine MountainCALIFORNIA12002
StrawberryCALIFORNIA12010

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