> They are in crowded conditions. Humans do the same things will kept locked up in crowded conditions. Many animals do. Goats are downright nasty little shits

> They are in crowded conditions. Humans do the same things will kept locked up in crowded conditions. Many animals do. Goats are downright nasty little shits with each-other, if they have horns (even w/o) Hens very much have a "pecking order", and can be pretty brutal to one another even with ample space to roam and feed. Don't get me started on most roosters, though we did raise some that were downright gentlemanly to their ladies. Quail in crowded conditions (we raised Coturnix) can damned near skin each-other alive if a sufficiently picked-on bird gets too damaged. Either bird will pick at open wounds on others. Not certain what that behavior was about, but is ain't good for the birds in either case.