This ia all very good advice for someone wanting to get a bird mounted. I have rebuilt my entire site and am adding pictures weekly. I have also moved into a commercial shop with a showroom for customers to come see first hand what to expect from my work. Good job on doing your homework and finding a great bird guy in Birdman. He does some great work.
Couple of pointers:
1. You get what you pay for. So when someone says they know someone that charges 175.00 when the going rate is 250.00 to 300.00 beware of the quality. (I learned the hard way)
2. Look at the gallery on their website. If thy have very few pics that should tell you something.
3. Consider shipping outside the area.
With this said I am recommending Birdman Studios out of Colorado. I just got two birds back from February and they are amazing. His website and pics are the best you will find. I would reccomend Birdworks but Matt is full. The thing I noticed about Pat at Avian Arts is he hasn't taken anytime to work on his pic gallery and so you can't get a good idea of work.