hello and welcome to the forum
I hope that you enjoy your stay here with us
I dont know of any breeders of military macaw,s but we have a few members with macaw,s that will be able to help you with this.
Hi and welcome. Not sure what to tell you, but in the US we look to bird magazines, bird clubs, bird rescues, word of mouth, and parrot shops. Don't know if that helps or not, but good luck.
You can also try googling and trying to find one that way. Usually your best bet though is to find a local bird club and ask around there.