Jo,
It seems that your gos tamed like a passage HH!!! That is exceptional and must have included the right moves. That is a good idea tossing a live bird at the end of an unsuccessful hunt I'll try it this year with the gos. Strange as it seems I have had several passage HH that returned to the truck when flown the first few days. I have never been able to figure this out because they were not fed in or around the truck and they were carried to it in a hood??? My guess is you value this gos highly. I've had only one gos that was exceptional so I feel it is my turn this year. Ouch but your weather is cold. I've hunted several days at 0 and could not keep my feet warm even in snow packs so I really belong down here where we often wear only light jackets.
Harry.
Harry.