I'm getting a runner, Welsh Harlequin and an African goose (all female) toward the end of the month. Was thinking of getting a call duck or two as well. Do you think even though there's a significant size difference that they'll do ok with each other if they're raised together? I've seen many mixed sizes flocks that include calls but also seen many say it's not a good idea. The calls don't get sexed so I wouldn't know if they'd be male or female. Also, with the flying, has anyone has issues with recall when free ranging? My Pekins and Swedish come when called but I've never worked with Call ducks before