I have 2 ducks... A Pekin & a Mallard. I've been told that there is a good chance they will fly off this fall... and that, if they do, they may return here next spring. I've also been told that the mallard may fly & return, but the pekin probably won't leave. And I've been told that, since they were raised together & the pekin won't leave, they'll both stay all winter. Anyone have any experience with the whole leaving & returning scenario? Who's likely to go and when and will they be back? Thanks!