My border collie was 4 when he was rehomed to us and I can't say he wasn't a challenge in the beginning, but he became without a doubt, the most trustworthy dog I have ever known. He was 17 when he died, and while I never had him and chickens at the same time, I did have him with my tiny preemie babies, whom he guarded fiercly, without being fierce, if that makes sense. He got along with every dog he ever met, even in his geriatric years when he would not have been strong enough to defend himself. A wonderdog, truly. I haven't thought of him for a while but I realize I still miss him after 5 years. I have nothing bad to say about the breed, but if you don't have the time or energy to imprint your wishes on them, then their wishes will be imprinted on you and I'm NOT saying all their ideas are good ideas!
(bambi is right!) Good luck and I hope you find your wonderdog!
