My geese, ducks and chickens share a big run but have separate housing. Generally it's no problem but during the breeding season, the drake has started picking on the goose, so then the gander steps in and jumps on the drake. Nothing major so far but I'm still bemused why the drake does it time after time.... If I'm around, they're allowed out to free range which makes it easier but the drake will seize his chance every so often.
I've just ordered some duck hatching eggs so I need to think through the logistics of that once I know how many are likely to hatch - might need to juggle housing at some point and was wondering about putting ducks in with the geese.
H