Hi, i have some muscovies and pekin ducks, i am planing on getting 1 crested duck and 2 call ducks... is that fine or do i need a bigger breed since the others are so big? I am also getting 2 silkies and I don't know if i can put chickens and ducks together? and if anyone knows where their is a place where i can buy chicks and ducklings at? im in Scranton PA