My Pheasant are 3 weeks and a little bit. Today when I went to change the water one of the chicks was hissing, I thought he was just pooping. Then he did it again. when I went to see what was wrong he bit my thumb! not a peck, a bite! He is the only one doing stuff like that. He has also been defending his territory near the feeder. He is the biggest one with the longest tail so I am thinking he is a rooster. I don't know what to do with him! all I know is he is going to be one pheasant I am sure to release. It is perfect temperature, they are not totally overcrowded but I am getting a washer/dryer box to add on tonight. I am now afraid to put my hand in the brooder to get the food and water. Oh that is another thing, when I go to change the food he gets puffed up like he is mad at something or someone (me). please help!