One of our little EE chicks (hmm...must be 2 1/2 weeks now) has started a habit of pecking the other bird's tail feathers., even the older ones about five weeks old. She's not hurting them, or able to pluck it out, but the feathers are frayed and a mess. I'm concerned because we had to rehome a buff orp from our existing flock because she became an obsessive plucker. So, my question is are they too young to put something on to prevent this bad habit? I bought some "Rooster Booster" which is suppossed to prevent plucking. Never ended up using it on my birds. Does anyone have an experience with this product and could I put it on the chick's tail? Then I thought about pine tar. Then I thought...maybe I'm just being paranoid. Your thoughts?