Based on 6,184 research-grade iNaturalist observations in Wisconsin, Red-winged Blackbird is most often recorded in May; in Wisconsin it behaves like a seasonal. It ranks #4 among birds recorded in the state in our data.
Agelaius phoeniceus
Red-winged Blackbird 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
American Robin
Baltimore Oriole
Canada Goose
Mallard
Rose-breasted Grosbeak
Gray Catbird
Sandhill Crane
Tree Swallow
Places to look in Wisconsin
State ParkAztalan State Park
State ParkWyalusing State Park
National ForestChequamegon–Nicolet National Forest
State ParkMerrick State Park
State ParkPerrot State Park
State ParkLake Kegonsa State Park
FAQ
When does Red-winged Blackbird appear in Wisconsin?
Mainly March–July, with the most records in May.
How common is Red-winged Blackbird in Wisconsin?
It ranks #4 by number of iNaturalist observations among birds in Wisconsin (6,184 records in our sample).