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

American Goldfinch Population Trend in Illinois

All statesGeneralists

American Goldfinch in Illinois has held roughly steady: down 1% on the route-weighted index since 1968.

-1%Since 1968
105Routes In State
58Years

Notable American Goldfinch Trends in Illinois

No notable trend signals for American Goldfinch in Illinois. See the full index history below.

American Goldfinch Population Forecast in Illinois

If the recent trend holds, American Goldfinch in Illinois is projected to stay roughly flat through 2029, near 9.7 (95% range 5.8–14). A 5-year backtest shows a typical error of ±15.2%, with 100% of held-out values landing inside the 95% band.

-6%Change by 2029
9.7Projected 2029 index
5.8–1495% range
±15.2%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
20259.75.714
20269.75.714
20279.75.814
20289.75.814
20299.75.814

American Goldfinch Survey Routes in Illinois

Routes recording American Goldfinch in Illinois.
Wayne5520241966
Humboldt4220241970
Janesville3820241972
York3620241993
Sherrard3420241993
Melrose2919991973
Caledonia2620241993
New Lenox2420191966
Belleview2220241966
Sheffield2120241966
Union2120172001
Grape Creek2120242001
Guilford2020231967
Pulaski1920241970
Holcomb1720241971
Itasca1720241973
Atkinson1720241966
Cave In Rock1620241993
Harristown1620242001
Karnak1620242001
Sandusky1520231993
Athens1520241995
Beaverdam Lk1420231970
Camp Point1420241993
Delwood1320241970

American Goldfinch Population Trend in Other States

alabamaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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