We have a pair of Embden geese that are about 5 months old. In the last month they have had some serious attitude problems hissing and biting, etc... We took care of their attitude towards us by always picking them up when they hissed at us, then we hold them for a few moments and put them back down. They don't hiss at us again while we are in the yard. They had started playing together in the water figuring out the mating situation along with a drake we have but had always left the chickens alone. However, yesterday we heard a wild noise in the yard and went out to find our goose attacking a chicken along with our duck. They had it held down on the ground and our goose had it by the throat. When I ran out towards them screaming and waving my arms, the goose threw the chicken across the yard. It was rather frightening. So we have kept them separated since it happened but we can't keep them that way because we just don't have the space. All the birds are used to ranging the whole yard and we are having to keep the chickens in their yard now. I don't know anyone around here to take the geese but I don't think I could kill them. I am too attached. Is this a normal behavior for geese or should we start advertising for a new home for them? Any advice on what to do?