My goose is overly friendly with my flock of duck hens, but never has he shown the slightest interest in my chickens. He bites them if he catches them eating food he wants, but other than that, ignores them. As far as cross species mating, he is a chinese goose, and isn't really big, and he doesn't try to mate the mallards, just the swedes, who totally do the flat-duck dance for him... so while I don't find it funny, It is commonplace, and doesn't offend my sensibilities... it sure doesn't offend theirs!
but generally, I prefer if the manimals keep their 'parts' to themselves.
but generally, I prefer if the manimals keep their 'parts' to themselves.