The morning was spent collecting ring numbers on Mute Swans at Windsor. There were only five or six with darvics and most of those had been seen before so we were reliant on binoculars and photography to record numbers on metal rings. The numbers can only be recorded when the birds haul out of he water, an action that scratches the metal and can make rings difficult to read.
Many birds carry two rings, one BTO and the other from swan upping http://www.royalswan.co.uk/sources/indexPop.htm
From this visit we recorded around ten new swan numbers and a Canada Goose.
Many birds carry two rings, one BTO and the other from swan upping http://www.royalswan.co.uk/sources/indexPop.htm
From this visit we recorded around ten new swan numbers and a Canada Goose.