Date: 08/30/2025

Number: 2

1848 Hours
2 monarchs roosting together in common hackberry (Celtis occidentalis), approximately 7 meters above ground level on side of tree facing southwest. Both monarchs continue to spread wings in sunlight during observation period of 7 minutes, but do not depart. Other monarchs still flying in prairie restoration to the north.

Wind from northeast at 4 mph. 69 degrees Fahrenheit (20.56 Celsius). RH 68%. Sunset scheduled for 1928 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
Contact Observer

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