California Tortoiseshells Swarm

Michael Milstein writes in The Oregonian about swarms of California tortoiseshells that have appeared from Mt Hood to Mt Jefferson.

By swarm, we’re talking millions. There has been word of a near loss of visibility at times on the mountain passes between Bend and the Willamette Valley, said Mace Vaughan of the Xerces Society, a Portland group that promotes insect conservation. The butterflies gather especially around water.

California Tortoiseshells Butterflies Oregon Mover Mike

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