I have a 5 1/2 month old Brown African/Chinese pair. They were raised with ducks. My Gander has recently discovered he is a gander but is enamoured with my tiny duck. I call her Mini. He doesn't try to mate with his goose only with Mini, who only weighs about two pounds. I free range in the day but two ducks raised with the geese go into the goose coop at night. I am going to try to move them to the duck coop at night. Does anyone have any suggestions on getting him to realize that the goose is his mate and not Mini?