Our leghorn rooster is about 13 weeks old. He's been crowing for at least 3 weeks now (isn't that early?). He started doing this weird-looking thing that I'm sure is realted to him 'growing up'... He walks around and starts tripping over his wing. usually it is only one wing. Then he'll jump. He did it around my son the other day (he's one year old) and I took it as a sign to shoo him away. I tried to grab him (hold him upside down maybe) but he is way to fast and flighty. What is he doing and why???