Hello! I would like to maybe get 2-3 ducks for my little sister as pets. What are good breeds for kids? I know most ducks are gentle, but which one is also the calmest, and won't flip out if it is held 90% of the time by a little first grader? We want a drake with a green head, so i was thinking mallards because they're cute, or rouens, but I think they're ugly. Thanks! Also, how many sq ft do ducks require in housing? I have read Storey's Guide to raising ducks twice, but can't remember.