Hey! Yea i think muscovies might be part goose becuase they are pretty large..The also hiss like geese... Muscovies are extremeley friendly, although some love some people so much that they show their love by biting..Lucky for me I got one of those ducks! I don't know how the muscovies could have ended up in the carrabian. I know someone who knows a TON about muscovies and i talk to her all the time. If you want to ask her, email her at [email protected]