hello im from wales in the uk and we rescued a family of swans off the main road and put them in the field behind our house which has a large pond, theyve been living here for months now and come up 3-4 times a day to be fed with bread and swan food,the babies are now flying and often go off with the mother for a few hours while the male stays on the pond, but the last 2 days the male swan has been missing and we cant seem to find him, is this normal for him to leave, or should we be worried and look for him, many thanks. x