Hi. I have six Barred Rock chickens that are nine weeks old. Yesterday, I noticed that one wasn't acting right. He (not really sure if it is a boy or girl) makes like a weird growling noise or weak, slow cooing, when we pick him up or touch him. He is lethargic and sitting. I thought his right wing may be hurt because he isn't lifting it much (but he can lift it and can stand up). He is breathing quicker. No nasal drip or cough. I was scared that the other chickens would hurt him or bother him so I put him in a plastic bin by himself. They were all laying on top of him yesterday when I found him. He is the largest chicken in the flock and when he is himself, has a docile temperament and is kind of aloof from the others. The chickens are currently living a wood bottom pin with pine bedding and enclosed with chicken wire, inside of my sunroom/patio. I have the doors cracked slightly and a small bathroom like exhaust fan on for ventilation. None of the other chickens are acting this way. Symptoms began yesterday. No sign of trauma. He is my favorite chicken and I'm quite attached to him so I am open to a vet visit if necessary. None in the area see chickens so I want to be armed with as much info as I can before going to one who is willing to see him. Thank you so much in advance! Here is a video of him last night making the noises and feeling bad. My daughter said he is up today which is good. I attached the pics she took of him this afternoon.