A month back my chicken disappeared for 2 days and then to my surprise she reappeared in the morning 2 days later. Last week she wasn't in the coop on Wednesday but returned Thursday morning. She left during the day Thursday after she ate and laid an egg then Saturday, at 12:30am I was woken up to a chicken call...run outside to find her in our front yard. I put her in the coop and let her out in the morning. She ate, laid an egg then left...but she kept talking the entire time she was here. Like a chirping noise, similar to a duck I guess..continous...nonstop. It was odd. We're city chicken owners. We left them free range our fenced in backyard but are building them a run now because of this chicken and problems with people. She is the only chicken that leaves the fence. She has twice had an egg stuck inside her if it makes a difference to know that and is approximately 7 months old. She has been gone since yesterday morning again. I really don't think anyone in our neighborhood has chickens. We do not have a rooster.