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

Savannah Sparrow Population Trend in Indiana

All statesGrassland birds

Savannah Sparrow in Indiana has collapsed: down 77% on the route-weighted index since 1968.

-77%Since 1968
59Routes In State
58Years

Notable Savannah Sparrow Trends in Indiana

long arc declinecomputed index

Savannah Sparrow has collapsed in Indiana: down 77% on the route-weighted index since 1968.

Savannah Sparrow Population Forecast in Indiana

If the recent trend holds, Savannah Sparrow in Indiana is projected to fall about 38% by 2029 — from 1.3 in 2024 to a central estimate of 0.79 (95% range 0.00–2.8). A 5-year backtest shows a typical error of ±15.1%, with 100% of held-out values landing inside the 95% band.

-38%Change by 2029
0.79Projected 2029 index
0.00–2.895% range
±15.1%Backtest error
19662029
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
20251.10.003.0
20260.990.003.0
20270.920.002.9
20280.860.002.8
20290.790.002.8

Savannah Sparrow Survey Routes in Indiana

Routes recording Savannah Sparrow in Indiana.
Middlebury1920241989
Packertown1320041967
Witts Station1020242000
Muncie919971981
Lagrange620241999
Jamestown420241986
Cuba420212017
Lakeville420242023
Kokomo420241995
Gary319991980
Fowler320241966
Monticello320241981
Thorntown320241982
Tipton319921966
Swayzee320131981
Scottsburg320091995
Decatur320191999
Plainfield319991999
Galveston220241981
Wabash220221981
Brazil220241980
Milroy220241966
Maplewood220212000
Corydon220011979
Frankfort220221999

Savannah Sparrow Population Trend in Other States

alaskaarizonacaliforniacoloradoconnecticutdelawareidahoillinoisiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooregonpennsylvaniarhode-islandsouth-dakotatennesseeutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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