Date: 09/01/2025

Number: 2

1854 Hours
2 monarchs were flying then landed on same branch in common hackberry (Celtis occidentalis) 5 meters above ground on the southwest side of tree. The tree is adjacent to a roost with 1 monarch. There is a lot of monarchs flying, searching for a roost.

72 degrees Fahrenheit (22.22 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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