circlefavshape parent
I kept chickens for 15 years (mostly free-roaming in my backyard, unless there was a fox lurking, so not in overcrowded small spaces) and I disagree. To me they seemed pretty stupid, and pretty mean to one another
We've had a small amount (just 3) with plenty of space and it was fun to observe them, all sort of interesting behaviors.
My favorite thing is them cooperating against a common enemy (a dog that was eating their food sometimes, which we've tried to mitigate but not being much successful).
Then once they had a discussion in the opposite corner about the problem and launched a stealth attack, covering themselves behind the trees while approaching the dog without the dog knowing it. Then once close enough they attacked from behind, the dog squeaked, more from the surprise than pain and since then the dog never touched their food again and avoided them.