Yep. I have a bird friendly lab and a bird friendly cocker but they can't stay out 24/7 in all weather and we started losing birds to coyotes so we got a GP. Our Pyrenees is the best dog ever. From day one he has just done his job. We haven't had a loss since he started working our property (almost 2 years) and there was no training involved at all. The guardian instinct is extremely strong in the breed once they know what is theirs which simply involved him following me around observing me taking care of everyone. I didn't leave the birds unpenned without me watching for a few days and that was that. The only thing I have to watch for now is him pigging out on chicken feed, lol. We free range our birds 24/7, we usually don't lock their coops and right now we are also housing 21 meat birds in a pen that is only 3 feet high with no roof. Predators don't dare come near our property at this point, he has established that this area is well protected.
I will never free range birds without a GP. I did a lot of research and when we looked at the litter we picked a shy and aloof puppy because I didn't want one that wanted a lot of human oversight. When we spoke to the breeder she said that there are definitely dogs who will not work out for livestock guarding and that I was right to want a more shy dog. He has been perfect. I highly recommend them for anyone who needs reliable around the clock guarding. He's well worth the peace of mind he gives. And he did eventually come out of his shell and he's very friendly and loves attention from us but he's never distracted and he will run from a good belly rub in a split second if he senses something is off.
Really I can't say enough about using a GP to guard birds. I think they are perfect!