juvenile, as told by brownish belly (Northern Ireland; 2008-09-18)

Great cormorant
Phalacrocorax carbo

Native Range: Eurasia, Austraian Region, and Oriental Region

Notes: a large and widely-distributed cormorant throughout marine shoreline environments the Old World; adult birds during the breeding season show white patches on the thigh and on the face, but otherwise are entirely black in plumage; juveniles are much browner.

yellowish gular pouch (Northern Ireland; 2008-09-18)

two adults, as told by the all-black plumage (Northern Ireland; 2008-09-18)

adult in flight (Luxembourg; 2007-10-17)

black adult on left, mottled juvenile on right (Luxembourg; 2007-10-17)

flock of juveniles, adults; one bird is wing-drying (Luxembourg; 2007-10-17)

juvenile in flight (Poland; 2012-06-03)