The show is for all birds, last year the Marans club met there and this year the silkies are meeting there I guess! Depending on the quality of the bird, if the person just brought extras I'd say you will pay a little more than regular price, $20-30 per head. For one on the winner's row you will pay significantly more for it depending on demand. A lot of times if you are waiting for birds from a specific breeder a show is a great chance to meet them in person and take pickup instead of having them shipped. Decide what breeds you want to inquire about and ask around on that breed's thread for some of the top names, then find out which ones will be at the show and ask them if they will bring you some birds to the show. If you don't arrange it beforehand you are at the whim of what's available and who's willing to sell their show birds that they brought.