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

Savannah Sparrow In Sierra Nevada

All regionsSierra NevadaGrassland birds

Savannah Sparrow in Sierra Nevada has edged down: down 12% on the route-weighted index since 1975.

-12%Since 1975
10Routes In Region
41Years

Notable Signals

No notable trend signals for Savannah Sparrow in Sierra Nevada. See the full index history below.

Forecast

If the recent trend holds, Savannah Sparrow in Sierra Nevada is projected to rise about 55% by 2029 — from 0.37 in 2024 to a central estimate of 0.57 (95% range 0.00–1.4). A 5-year backtest shows a typical error of ±274.8%, with 100% of held-out values landing inside the 95% band.

+55%Change by 2029
0.57Projected 2029 index
0.00–1.495% range
±274.8%Backtest error
19702029
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
20250.570.001.4
20260.570.001.4
20270.570.001.4
20280.570.001.4
20290.570.001.4

Routes In Sierra Nevada

Routes recording Savannah Sparrow in Sierra Nevada.
GoumazCALIFORNIA82011
SattleyCALIFORNIA62024
Eagle LakeCALIFORNIA22003
GeneseeCALIFORNIA22011
PaxtonCALIFORNIA22022
Little TruckeeCALIFORNIA22023
DardanelleCALIFORNIA12014
WoodfordsCALIFORNIA11981
ChilcootCALIFORNIA12024
Last ChanceCALIFORNIA12018

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