I've got a 2-1/2yo rescued GWP that has fantastic points, but will point dead birds just as hard rather than fetching. Eventually he will nose the bird and fetch but it can take a while sometimes. Any suggestions?
And what does the dog when a bird is down in the water? This might be a good exercise for the dog; tell him fetch. He'll eventually learn to bring the wet bird back and do the same on land...
If the dog is retrieving, let him figure out the difference between a live bird and a dead one. Don't force him to pick up a bird, that will make him not want birds. If you do force fetch him it should not be done with birds at all. One thing you can do is throw him a couple easy retrieves with the birds landing in plain sight after each hunt. It will help him understand the difference between live and dead.