Some owls burrow. Other birds live in caves.
Ooops, My bad. I guess I'm used to hearing crazy stuff coming from the Dino-Asteroid people I didn't even question it when I read it wrong.
Some owls burrow. Other birds live in caves.
Owls weren't around until the Miocene
But what about Parrots?
Also if the all terriestial birds were wiped out leaving just the cave dwelling birds to later evolve and fill the non-cave niches of modern birds why didn't more bats also diversify into the non-cave niches since they were "Open"?