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

Vesper Sparrow Population Trend in Kansas

All statesGrassland birds

Vesper Sparrow in Kansas has edged down: down 20% on the route-weighted index since 1975.

-20%Since 1975
15Routes In State
29Years

Notable Vesper Sparrow Trends in Kansas

No notable trend signals for Vesper Sparrow in Kansas. See the full index history below.

Vesper Sparrow Population Forecast in Kansas

If the recent trend holds, Vesper Sparrow in Kansas is projected to stay roughly flat through 2028, near 0.11 (95% range 0.00–0.27). A 5-year backtest shows a typical error of ±149%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2028
0.11Projected 2028 index
0.00–0.2795% range
±149%Backtest error
19692028
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
20240.110.000.27
20250.110.000.27
20260.110.000.27
20270.110.000.27
20280.110.000.27

Vesper Sparrow Survey Routes in Kansas

Routes recording Vesper Sparrow in Kansas.
Ulysses1620032003
Ruleton420101981
Seneca320222007
Minneapolis319761976
Melrose219791979
Coats219721972
Barclay219841984
Grantville220132008
Olsburg220092006
Galesburg119751975
Longton119791979
Ashland119831969
Dover120072007
Buckeye120102010
Severance120232000

Vesper Sparrow Population Trend in Other States

arizonacaliforniacoloradoconnecticutdelawareidahoillinoisindianaiowakentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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