Butterfly sighting

Apr 17 2021

Ethan Brown

Location: Cedarburg Bog off 33
Ozaukee County

Butterflies mostly disappeared after an hour. A relatively cool afternoon. Around 53 degrees and sunny. No tortoiseshells today.

Can anyone answer this for me? 2 weeks ago I found the 50+ Mourning Cloaks all one area. Where did they all go? I didn’t think they could migrate. Also, I didn’t see any pairs. Now, most seem to be gone.