NO! Animal Cruelty would be if Boruto was attacking without good reason, but here hes defending himself, trying not to DIE from MUDEROUS BIRDS!!! There are only 3 times (not including those that change depending on other factors) causing harm to animal is expressly allowed: #1 SELF-DEFENSE, #2 FOOD, #3 TERRITORY DISPUTE (refering to if ur protecting home not property).
These are Natural Laws not Human Laws, meaning they supercede those we make and will occur even if we try to abstain or prevent it, as well as if there werent humans at all. We may try to think we're better but we are Animal FIRST, then human, then sex, then race, then sexuality/gender identity, THEN individuals that get to decide everything else about who we are.