BirdAnalyst
Species · Washington · BBS 2025 Release · 1966–2024

Savannah Sparrow Population Trend in Washington

All statesGrassland birds

Savannah Sparrow in Washington has edged up: up 24% on the route-weighted index since 1970.

+24%Since 1970
93Routes In State
56Years

Notable Savannah Sparrow Trends in Washington

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

Savannah Sparrow Population Forecast in Washington

If the recent trend holds, Savannah Sparrow in Washington is projected to fall about 14% by 2029 — from 6.4 in 2024 to a central estimate of 5.5 (95% range 2.2–8.8). A 5-year backtest shows a typical error of ±19.7%, with 100% of held-out values landing inside the 95% band.

-14%Change by 2029
5.5Projected 2029 index
2.2–8.895% range
±19.7%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
20255.62.38.9
20265.62.38.9
20275.62.38.9
20285.62.38.9
20295.52.28.8

Savannah Sparrow Survey Routes in Washington

Routes recording Savannah Sparrow in Washington.
Ewan5020191985
Port Angeles4620241970
Asotin4620241983
Reardan3820241968
Chewelah3720211977
Malden3620241998
Odessa3120241993
Bay View2920171993
Keystone2120241994
Wilbur2020241984
Ewan 21820242023
Harrington1720121981
South Elma1720241975
Camas1620091977
Bickleton1520151987
Mendota1519881977
Mendota 21520001989
Warm Beach1220171968
Kendall1220241981
Carnation1020241988
Mcchord1020151996
Pomeroy920241998
Warm Beach 2920242018
Scootney Reservoir920242009
Everett820241975

Savannah Sparrow Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutdelawareidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-dakotatennesseeutahvermontvirginiawest-virginiawisconsinwyoming

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