Estimating great cormorant Phalacrocorax carbo population change as an aid to management /
Bayliss, S. M.
British Trust for Ornithology.
Thetford : British Trust for Ornithology,
2005.
"Report of work carried out by the British Trust for Ornithology under contract to DEFRA -- t.p.
"June 2005" -- t.p.
Includes bibliographical references.
Great cormorant