i have a flock of 9 birds.. a year old now.. 3 Buff Orpingtons, 3 Barred Rocks and 3 Black Australorps.. one of the buffs has always been odd.. she matured terribly late, grew HUGE.. i don't think she ever has layed eggs.. she followed me around so much she got nicknamed Puppy.. she grew aggressive towards me for a short while, even drew blood pecking me.. she was never aggressive with any of the flock.. she out grew her aggressiveness towards me when she tried to peck me and one of the flock flew at her and held her head down.. but since then, she has never felt like part of the flock.. always either following me or wandering off on her own.. sad to say, she has always come across kind of simple. not quite there.. i live on 6 acres of woods, neighbours not really close by.. the other night she wasn't in the coop roosting.. so walked thru the woods, calling her name.. [all my girls come when called] .. nothing. the next day i went out looking for her or remains.. when i got back from the woods, there she was.. eating with the flock like nothing happened. that night again, not roosting.. next day, there she was again. not roosting that night.. and no sight of her yesterday or today.. so.. i know she is going 'somewhere' during the day.. where she roosts at night, no idea.. so.. do chickens run away from home?? sounds funny, but i don't understand this behaviour.. a friend said she could be sitting on eggs somewhere, but she has never layed an egg. i have never seen her in a nest box or have any interest in sitting.. no roosters, so no chance of chicks.. anyway.. just odd. and i have only been a chicken mama for a year. here she is just a couple weeks ago.. even her comb has never filled in.. anyway, any thoughts on this? has anyone ever had a hen run away from home?