"She plays rough with the other dogs (this is a 'doggy' bitch, for sure), but never touches the bird.
"He is quite confident of his ability to put a dog in its place, either footing the dog in the snout or nipping the nose – even then he pulls his punches."
Ours start early...
And some birds-- well, one bird-- actually fed the dogs in the summer after he grew up, during the time he would have fed nestlings. We had to move him to where he could not reach the dogs, though he would call to them through the fence.