I swear, out of all my flock 30+ chickens and ducks, I have one Buff Orpington that I swear is mentally challenged! When the day is waning, all the rest head into the Chicken Palace to roost or bed down for the night. Buffy will stooge around outside, then wander off down the hill by herself! Nobody is picking on her, and in the morning she is outside the Palace waiting to be fed. She does this off and on, not consistently. My flock is free range, but separated from my house yard and garden area. Buffy always seems to find a way over to the restricted areas, and she's the only one. I tracked her down one night to her hiding spot, and there were no eggs or anything, just a nest. I'm really getting tired of her behaviour, and will not track her down again. I'm thinking she has her own agenda, and is really smart, or else her internal compass is out of whack! Any suggestions or similar experiences?