On the evening of April 8th radar picked up the largest flight we have ever seen from Frio Bat Cave. Our guess is there were as many as 17 million bats in the air at one time around 2:06 Universal Coordinated Time or about 8:57 Central Daylight Time.
They emerged around 7:19 pm CDT and some went 80 miles SE to around Christine, TX
Most went at least as far as 50 miles to crop fields around Pearsall, TX.