So I was cleaning out my chicken coop today when one of my chickens started having white foam stuff in their mouth. He just ate a grape and had a no crow collar on. After a minute he was flapping his wings and going beserk. I went over and took his collar off, but when I got it off he fell over into my hands. He was lifeless at that moment and I thought I lost him. My mom was nearby and massaged his throat and he finally started moving. I don't know if we should do anything else to him. We put him inside a box in our garage with water. What can I do to help him???