Mourning Cloak: Harbinger of Spring

Subject: Butterfly seen today
Geographic location of the bug:  San Francisco Bay Area nature preserve
Date: 02/01/2018
Time: 08:58 PM EDT
Your letter to the bugman:  Saw this beauty today on an unusually warm February day.  ID help would be much appreciated. Thanks!!
How you want your letter signed:  David A

Mourning Cloak

Dear David,
Because they hibernate, Mourning Cloaks are often the first butterflies seen flying in the spring.  It is not uncommon to see a Mourning Cloak flying with snow still on the ground if it is a warm sunny day.

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