They do seem to hide away. The two we managed to see where sat in the trees at the top end of Ivan's woods, heard us coming back from a bimble across the moors and took flight, just the other side of the tree line. Luckly the trees were a good few feet apart and when they departed, they flew low. Probably why we never normally see them, being below the tree tops. Also heard one up on the field, calling as he was in flight, never saw him, just heard the "cuck-cooo" every now n then as he moved (kinda like a submarine pinging, if you know what I mean lol), never even knew they could do that.