
Based on 1,801 research-grade iNaturalist observations in Wisconsin, Ruby-throated Hummingbird is most often recorded in August; in Wisconsin it behaves like a summer visitor / breeder. It ranks #34 among birds recorded in the state in our data.
Archilochus colubris
Ruby-throated Hummingbird 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 August
Sandhill Crane

Great Blue Heron

American Goldfinch

Wild Turkey

Mallard

Green Heron

Cedar Waxwing

Bald Eagle
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 Ruby-throated Hummingbird appear in Wisconsin?
Mainly May–September, with the most records in August.
How common is Ruby-throated Hummingbird in Wisconsin?
It ranks #34 by number of iNaturalist observations among birds in Wisconsin (1,801 records in our sample).