Date: 09/01/2025

Number: 16

1913 Hours

16 monarchs on different branches on south side of a common hackberry (Celtis occidentalis), between 6 – 9 meters above ground.
71 degrees Fahrenheit (21.67 C). Slight wind from Northeast at 6 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).

Wilmington, IL

Latitude: 41.4 Longitude: -88.1

Observed by: Mike
Contact Observer

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