Batman, Bat Collective.
[18.08.14. I extracted this post from an older one which I wrote back in 2008.]
I’ve commented ad nauseam on the fairly frequent visits I get for certain topics which were merely mentioned in passing, or not mentioned at all, but used an unfortunate combination of words which then acted like catnip. Now a new one has suddenly appeared from over the horizon. I note that I’ve had several visitors of late who, I guess, want to know the collective noun for a group of bats. They’ve all ended up on my entry A flock of bats? which I posted in June 2006, but which supplied no answer. The terms such visitors are looking for are “colony” or (apparently) “camp”.
But is that necessarily right?
The point is that I wasn’t thinking about the static colony, but rather the bats as they flit around in the air. On the other hand, although bats live together, they appear to hunt as individuals. Birds of a feather flock together, as the saying goes; but because bats aren’t birds, they don’t flock. [Such impeccable logic. –ed.] I’d guess that bats probably have to be fairly solitary fliers because of their use of echo location to find their prey. If you had a hundred bats all together sending out high frequency pulses, they’d probably never catch anything because of the confusion of sounds.
It’s not unusual to see a couple of bats, but it appears to take higher concentrations of insects to attract greater numbers of them.