My 4-month old rooster is gone....everyone else is accounted for. We free range and they were all there at 9 a.m but one was missing by 10:30 a.m. We were home but not outside. If there is a chicken ruckus, I usually hear it but being young, I guess they didn't know to make noise. The 2 older birds don't socialize with the younger ones and they apparently weren't nearby or they would have been screeching. We looked all over the place but didn't find even a single black feather. They don't range far from the house. Our indoor dogs didn't pick up on anything either. Took them out sniffing and neither found any area of interest. I'd like to know if it was by air or ground.... we have had hawk attacks in the past but without losing a chicken.