Prey drive is no joke. My sister has a heeler/corgi mix, and taking her for a walk is an exercise in not dislocating your arm whenever she spots a small animal. She’s adorabloodthirsty.

Oddly her other dog, a heeler/pit mix, is super chill with no apparent prey drive whatsoever. I’m pretty sure you could hold a baby bird in front of his face and he’d just sniff at it dumbly with his tail wagging.