Date: 09/21/2016

Number: 47

Observed 50 monarchs between 6:15 pm and 7:00 pm flying from a wildflower field into a tree line that borders the north side of the field. Most circled the west end of the tree line and formed roosts on the northwest side of the trees, away from the wind. 10 monarchs started to circle the west end and then flew off to the west, rising up in the wind currents. Temp was in the upper 70's with a low of 63 degrees expected overnight. Winds out of the SSE at 10 mph.

Heyworth, IL

Latitude: 40.3 Longitude: -89

Observed by: S
Contact Observer

The observer's e-mail address will not be disclosed.
Contact will be made through a web-based form.