Check out birdmanstudios.com all he does is game birds. Todd is a great guy to work with. Simply get your bird to him, and when he gets to it he'll request a pose you had in mind. He'll do your bird, then send a professional photo of the bird in his studio, and request payment. Settle up with him and BAM, your bird arrives at your house shortly thereafter.
His prices are competitive but I have never seen work as good as his. He is the only guy I'll use for birds.