Date: 09/01/2025

Number: 1

1 monarch in common hackberry (Celtis occidentalis) 5.5 meters above ground on southwest side of tree

73 degrees Fahrenheit (22.78 C). Only slight breezes from Northeast at 5 mph.. RH 58%. Sunset scheduled for 1924 hours.

Adjacent to Henslow Trail, near Iron Bridge Trailhead, Iron Bridge Prairie Restoration, Midewin National Tallgrass Prairie (U.S. Forest Service). Early for peak migration

Wilmington, IL

Latitude: 41.4 Longitude: -88.1

Observed by: Mike
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