We have a Pyr who needed training to be good with the birds. Lots of training. About eight months of it. He's good now and even tries to herd wild turkeys into the barn for me, as he knows that birdies belong in the barn.
We just got a Newfoundland puppy, and after visiting the breeder's yard with a few off-leash puppies and adults, birdfeeders with songbirds everywhere, I will vouch for Newfies being a good dog around birds and other meek critters. I don't think those Newfies could have caught a dead squirrel. They certainly didn't keep the live ones out of the breeder's orchard. The most laid-back dogs I have ever seen.
Edited to add: OK, now I really really really recommend Newfoundlands. I just brought my playful, nippy puppy out to meet the chickens while they ranged. One Welsummer pullet walked up to her to investigate. I sprinkled a little scratch on the ground around the puppy. Welsummer eyes up the puppy, then judiciously begins eating her scratch, about 10-12 inches from the puppy. The Newfie freaked and ran away from the chicken and hid behind my legs. This is the same puppy who gives the 100 lb. Pyr rough play, and she's scared of chickens. Go figure.