My 4 month old cockatiel is destroying his wooden ladder ... Here's a pic..is this typical? When I take him out and he's perches on my shoulder his is constantly looking for anything he can peck at including my neck, he just started doing this, he also just started to pace back and forth on the bottom of his cage and chirping non stop until I let him out, he doesn't do it all day long, is this just his way of saying "hey let me out!" Or is this anxiety? He will also chirp really loud like he's in distress looking for me if I'm not in the room he will come out calling for me. Sometimes it's like I have a puppy. Is all this typical?