Hello My chickens eat feathers. Not by plucking them off, but if there's a feather laying on the ground that's not too dirty they'll eat it. Why? They've been doing this since the age of 10 weeks and I've only seen it it a few times. I noticed it again today which lead me to asking about it. They're now 18 weeks old and have no eggs yet. They have access to food inside the coop at all times during the day and water is outside and inside. ??? Thanks.