Date: 09/22/2025

Number: 9

1905 Hours

9 monarchs on a common hackberry (Celtis occidentalis). One cluster of 9 at 6 meters above ground on northeast side of tree.

Sunset was at 1849 hours. Dark conditions. 72 degrees (22.22 C). Very light wind. with breezes from south at 4 mph with expected gusts from south at 10 mph. RH 76% with dew point 64.

On Henslow Trail near Iron Bridge Trailhead at Midewin National Tallgrass Prairie (U.S. Forest Service).

Wilmington, IL

Latitude: 41.4 Longitude: -88.1

Observed by: Mike
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