So after 2 1/2 months we let our pea-pair out. They are hanging around our farmyard, mostly together though the male tends to go off on his own and forget about his lady. However, at night they do not only NOT go back in the barn, but they have taken to roosting in trees for the night, separately. Separate trees. Why is that? Does this mean they are not a bonded pair/don't like each other after all? They seemed to be getting along just fine in the barn.