The Marin CNPS Facebook page reports there has been an explosion of Tortoiseshell Butterflies at Pt. Reyes. See photos at https://www.facebook.com/photo.php?fbid=10156583286972360&set=gm.1057839837724148&type=3&theater
Large numbers were also reported at Mt. Umunum in San Jose and Lassen National Park.
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Same thing here in Central Oregon, at high elevations in the Cascades. Beginning around the 2nd of July.
By: Bob Johnson on July 9, 2018
at 9:22 PM