Return to Home Today's Paper Flight schedule of the Mexican free-tailed bats RED indicates months bats are in Austin. Get directions and a map to the Congress bridge.
Weather conditions can change the bats' arrival and departure times.
The bats are wintering throughout Latin America, primarily Northern Mexico. February Migration north may begin in the latter part of the month. March Large numbers of bats migrate north, many to the Congress Avenue bridge. April Most of the bats have complete their migration and are now emerging from the bridge just before dusk. May Mothers are preparing for the birthing process by feeding throughout the night.