Here is the real deal...
McCracken, Gary F. An ongoing research project is demonstrating that Mexican free-tailed bats go to great heights to intercept some of North America's most costly agricultural pests . . .
By Gary F. McCracken
Millions of bats emerge from the cave, climb higher than the eye can see, and disappear in the evening sky. Returning in the murky light of early morning, the bats appear to swoop straight down from the stratosphere, opening their wings to brake with a "phssst" at the cave's entrance. While not actually the stratosphere, the altitudes to which Mexican free-tailed bats (Tadarida brasiliensis) fly is impressive. Radar studies of the bats from Bracken Cave in Texas show that they fly as high as 10,000 feet (3,000 m), with the densest aggregations at altitudes of 600 to 3,200 feet (200 to 1,000 m) above the ground...
https://www.metabunk.org/debunked-texas-weather-modification.t3854/
600 to 3,200 feet.
Even common core dummies could eventually figure out they could clear a 30 foot wall.
But good 'ol "always good to have you" (on MSDNC) Jeff Corwin would have you think it is "unprecedented environmental catastrophe."
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Good post, right on.