Date: 10/08/2015

Number: 100

There we so many beautiful butterflies! Absolutely amazing! Around 6 pm mountain time.... They were shield from the wind as my daughter has a wind break around her house. It was just an amazing sight driving down her driveway they were flying everywhere around the trees! I'm not sure what the overnight temp were but it did get chilly!

Editor’s note: Observer confirmed 10/08 is the night the roost formed.

Sheridan Lake, CO

Latitude: 38.4 Longitude: -102.2

Observed by: Consuelo
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