I have experienced the issue of stray poultry where ID of owner is not known. General search in area with many neighbors that do not know each can be problematic, especially when it is difficult to catch people at home. Owing to dispersal pattern of stray poultry, generally the owner is close by; 400 yards tops. Since bird has been out multiple days, burden for owner is increased for locating lost stock. Farming community situations generally easier because of fewer potential sources. All said, all parties have some responsibility for seeing to stocks needs at least for a time.