Based on 2,830 research-grade iNaturalist observations in Wisconsin, House Finch is most often recorded in May; in Wisconsin it behaves like a seasonal. It ranks #18 among birds recorded in the state in our data.
Haemorhous mexicanus
House Finch in Wisconsin by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Wisconsin in May
Red-winged Blackbird

American Robin

Baltimore Oriole
Canada Goose

Mallard

Rose-breasted Grosbeak
Gray Catbird
Sandhill Crane
Places to look in Wisconsin
Aztalan State Park
Wyalusing State Park
Chequamegon–Nicolet National Forest
Merrick State Park
Perrot State Park
Lake Kegonsa State Park
FAQ
When does House Finch appear in Wisconsin?
Mainly October–August, with the most records in May.
How common is House Finch in Wisconsin?
It ranks #18 by number of iNaturalist observations among birds in Wisconsin (2,830 records in our sample).