I was just guessing. I believe it was @saysfaa who dug deep enough in the APHIS website to confirm it.This has been hashed over a lot on another thread. "(Non-poultry)" means that the birds involved are not part of the commercial food chain. It's a legal(?) term I think. It does NOT mean the birds are NOT poultry, just that they aren't commercial poultry.
My thanks to @U_Stormcrow for figuring this out and passing on the info.