I know chickens make lots of different noises, but yesterday the noises coming out of one of my Light Brahma's really worried me. She goes "Honk, honk, honk" really deep and scratchy sounding. I was thinking that maybe she had a cold or something? But this morning a couple more are making the same sound. They are 10 weeks old. Are their voices changing... like pubescent teenage boys do????? Or are they sick??? They seem fine, but this is my first flock and I don't know!!