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

Chipping Sparrow Population Trend in Wisconsin

All statesGeneralists

Chipping Sparrow in Wisconsin has surged: up 85% on the route-weighted index since 1968.

+85%Since 1968
98Routes In State
58Years

Notable Chipping Sparrow Trends in Wisconsin

long arc increasecomputed index

Chipping Sparrow has surged in Wisconsin: up 85% on the route-weighted index since 1968.

Chipping Sparrow Population Forecast in Wisconsin

If the recent trend holds, Chipping Sparrow in Wisconsin is projected to rise about 55% by 2029 — from 16 in 2024 to a central estimate of 25 (95% range 18–32). A 5-year backtest shows a typical error of ±66.8%, with 0% of held-out values landing inside the 95% band.

+55%Change by 2029
25Projected 2029 index
18–3295% range
±66.8%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
2025241731
2026241731
2027241731
2028241731
2029251832

Chipping Sparrow Survey Routes in Wisconsin

Routes recording Chipping Sparrow in Wisconsin.
Mukwonago4320041998
Paris4220241966
Fall River3920241966
Brownsville3920241966
Raymond3920241966
Gresham3720241998
Kiel3720221998
Land O Lakes3620161967
Eagle River3320241966
Wausaukee3320241980
Pardeeville3320241968
Irma3220241967
Hatfield3119981970
Omro3120011966
Casco3120241972
Iron River3020241967
Wis Rapids3020231966
N Freedom3020241966
Grimms2820211998
Union Twp2720241966
River Falls2620241998
Hebron2520241966
Amnicon Falls2520241998
Cumberland2420241966
Viroqua2420241966

Chipping Sparrow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawyoming

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