Date: 09/06/2025

Number: 8

1850 Hours

8 monarchs in cluster on branch of a common hackberry (Celtis occidentalis), 9 meters above ground on southeast side of the tree.

62 degrees F (16.78 C). Sunny. Winds 6 mph with gusts up to 12 mph from the west. RH 54%, Dew Point 45. Sunset scheduled for 1916 hours.

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

Elwood, IL

Latitude: 41.4 Longitude: -88.1

Observed by: Mike
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