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

American Goldfinch Population Trend in Maryland

All statesGeneralists

American Goldfinch in Maryland has risen sharply: up 66% on the route-weighted index since 1968.

+66%Since 1968
76Routes In State
58Years

Notable American Goldfinch Trends in Maryland

long arc increasecomputed index

American Goldfinch has risen sharply in Maryland: up 66% on the route-weighted index since 1968.

American Goldfinch Population Forecast in Maryland

If the recent trend holds, American Goldfinch in Maryland is projected to stay roughly flat through 2029, near 15 (95% range 11–19). A 5-year backtest shows a typical error of ±22.9%, with 60% of held-out values landing inside the 95% band.

+1%Change by 2029
15Projected 2029 index
11–1995% range
±22.9%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
2025151118
2026151119
2027151119
2028151119
2029151119

American Goldfinch Survey Routes in Maryland

Routes recording American Goldfinch in Maryland.
Ijamsville3720241986
Jennings3620241995
Wolfsville3320241966
Eklo3220181966
Finzel3120241995
Williamsport2720241966
Smithsburg2720141966
Olney2720241966
Davidsnville2720241982
Island Creek2720241991
Emmitsburg2620241966
Earlton2620242014
La Plata2320091966
Madonna2020222009
Pr Frederick2020241991
Beltsville1920121966
Hughesville1920241966
Norwood1720121966
Walnut1720241999
Cokesbury1620241966
Forest Grove1620232011
Pomonkey1520241966
Piney Grove1420241995
Severna Park1420111982
Nottingham1420242005

American Goldfinch Population Trend in Other States

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

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