These are photos of birds I photographed at Cooper Bay in South Georgia. What name should I give them? Blue-eyed Shag is sometimes used to describe a specific species and sometimes to refer to an entire group of species and subspecies. Taxonomically, authorities have not yet agreed upon the genus of the bird nor how many species and suspecies exist. Whatever. The birds in question all have a blue, purple or red eye ring and in breeding season the adults have a black crest and bright orange nasal caruncles (fleshy, naked outgrown). Juveniles have a predominantly brown plumage and lack the caruncles and head crest (last photo).