Great stuff that is why wee keep them . I had a blue pied hen here that came in during racing and she came from Slovenia ,I kept her all winter letting her out with the other hens but showed no sign of leaving but during the breeding season she would not pair up and sat herself all the time ,then one weekend she went missing for a few hours but came back then next day the same then the following week I watched her on the house roof and knew she was going to try to get home and never seen her again ,never found out if she did or not as lost owners details but shows they know where they want to be .