Spotted Shag
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| Spotted Shag | ||||||||||||||
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| Stictocarbo punctatus Sparrman, 1786 |
The Spotted Shag or Parekareka, Phalacrocorax punctatus, is a species of cormorant endemic to New Zealand. Originally classified as Phalacrocorax punctatus, it is sufficiently different in appearance from typical members of that genus that to be for a time placed in a separate genus, Stictocarbo, along with another similar species, the Pitt Island Shag.
[edit] Description
Compared with typical cormorants, the Spotted Shag is a light-coloured bird. Its back is brown. Its belly is pale blue-grey (often appearing white), and the white continues up the sides of the neck and face, but the throat and the top of the head are dark blue-green. In the mating season, it has an obvious double crest. There is little sexual dimorphism.
Spotted Shags feed at sea, often in substantial flocks, taking its prey from mid-water rather than the bottom. It is likely that pilchard and anchovy are important prey species.
Spotted Shags nest in colonies of 10-700 pairs, these colonies are generally found on the ledges of coastal cliffs (see photo at left) or on rocky islets.[1] In the South Island, they are particularly readily observed around Banks Peninsula; there is a large nesting colony immediately south of the city of Christchurch. In Wellington Harbour there is a large colony on a rocky outcrop known as "Shag Rock" just off the south-west end of Matiu/Somes Island.[2]
The Spotted Shag was featured on a 60-cent New Zealand postage stamp first issued in 1988, in a series devoted to native birds.
[edit] References
- ^ Barrie Heather and Hugh Robertson, "The Field Guide to the Birds of New Zealand" (revised edition), Viking, 2005
- ^ http://www.notornis.org.nz/free_issues/Notornis_39-1992/Notornis_39_4_263.pdf, accessed on 6 March 2007
- BirdLife International (2004). Phalacrocorax punctatus. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 5 May 2006. Database entry includes justification for why this species is of least concern
