Factors affecting the breeding performance of the Antarctic blue-eyed shag (Phalacrocorax atriceps bransfieldensis)

• Main Author: Shaw, Philip
• Format: Thesis
• Language: unknown
• Published: 1984
• Subjects: Antarctic; Signy Island; South Orkney Islands; The Antarctic; Antarc*; Blue Eyed Shag; Phalacrocorax atriceps
• Online Access: http://etheses.dur.ac.uk/7469/; http://etheses.dur.ac.uk/7469/1/7469_4534.PDF

Blue-eyed Shag nestlings at two colonies on Signy Island, South Orkney Islands, have been ringed annually since 1960. By 1979 27 % of the adult population had been ringed, and were of known-age. More males than females return to the colony and breed for the first time at ages 3-4 years, and most oft...