They are 7 weeks old. The white one is an EE and the tan one is a buff orpington. I've been suspecting the white one is a rooster because it made a funny sound a few days ago. This morning the tan one was lifting its head and opening it's mouth, but no sound came out--I hope it's not a rooster, too! Has anyone ever had a chick that did either of those things but turned out to be a hen? Please tell me what you think based on the pics. Thank you!