Photo: Kasey Decker / iStock / Getty Images
An annual migration of millions of butterflies is heading through San Antonio. The American snout butterfly gets its name from its long nose. Its grayish-brown camouflaged wings often cause it to be mistaken for a moth. The butterflies usually head across the I-35 corridor to South Texas from early August to late September. During that time, expect a large number of the bugs to end up splattered on your windshield.