Monday, December 16, 2019

Aspects of the breeding biology of the pied shag (Phalacrocorax varius) at Makara Beach, Wellington, New Zealand

TitleAspects of the breeding biology of the pied shag (Phalacrocorax varius) at Makara Beach, Wellington, New Zealand
Publication TypeJournal Article
Year of Publication2008
AuthorsPowlesland, RG, Sharp, SE, Smith, ANH
JournalNotornis
Volume55
Issue2
Pagination69-76
Type of Articlearticle
Keywordsbreeding season, breeding success, brood size, clutch size, New Zealand, Phalacrocorax varius, Pied Shag, population increase
Abstract

Breeding of pied shags (Phalacrocorax varius) at 2 colonies at Makara Beach, Wellington, was studied from Mar 1996, when breeding was 1st noted there, to May 2005. Pairs occupied and refurbished vacant nests rather than build new nests. The number of breeding attempts increased from 3 in 1996 to 46 in 2004, with 166 occurring during the study. New nests (n = 14) took about 3 weeks to build; most nests were used twice a year. Clutches were laid in all months, but there were 2 peaks: 61 nests (37%) in Feb

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