Thank you for answering. Actually I am not pondering if the dogs are missing the former owner and their flock. I am more interested how they might accept the former flock members or owners in their new territory. For example horses have difficulties to readjust if some member of the flock is away awhile. This is usually the way people stress their horses when they take their horse from the familiar flock for a summer for example and return it back to the flock after some weeks or months. It is not a question of that horses would not recognize the member, but they have to reorganize again in order of rank - and this is really stressful for all horses in the flock. Would dogs accept the former owner or member of their flock without a question in their new flock, what do you think? In other words, could my dogs former owners for example come and rob my household without a gesture from my dogs?