When my rooster sees something new and different, like a package of cable ties, a baseball cap, he puffs up and wants to attack it. And sometimes does attack the foreign object. Then once he knows what it is he seems ok and is not aggressive otherwise. I really like this rooster and he is really sweet toward me. He did chase my nephew - but he loves to be held and was extremely well behaved at the Pet Parade - even better than some of the dogs there. Is this like my dog growling at the asparagus the first time he saw it?