||Rough-faced Shag, Rough-faced Shag
Leucocarbo carunculatus carunculatus Turbott (1990)
||del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International.
||76 cm. Large, black-and-white cormorant. Black head, hind neck, lower back, rump, uppertail-coverts, all with metallic blue sheen. White underparts. Pink feet. White patches on wings appear as bar when folded. Yellow-orange caruncles above base of bill. Similar spp. Pied cormorant P. varius has white face, neck, black feet, no white patches on wings. Voice Makes little noise at colonies, silent elsewhere.
|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Gaze, P., Schuckard, R. & Weeber, B.
||Benstead, P., Mahood, S., McClellan, R., Pilgrim, J. & Taylor, J.
This species is classified as Vulnerable because it has a very small population and is restricted to four very small islands, rendering it susceptible to stochastic effects and human impacts. If human disturbance or set-netting were shown to cause a population decline or fluctuations in numbers or locations, it would require uplisting to Endangered.
|Previously published Red List assessments:|
- 2010 – Vulnerable (VU)
- 2008 – Vulnerable (VU)
- 2005 – Vulnerable (VU)
- 2004 – Vulnerable (VU)
- 2000 – Vulnerable (VU)
- 1996 – Vulnerable (VU)
- 1994 – Vulnerable (VU)
- 1988 – Threatened (T)
|Range Description:||Phalacrocorax carunculatus is endemic to New Zealand, where 92% of the population breeds on White Rocks, Sentinel Rock, Duffers Reef and Trio Islands, in the Marlborough Sounds, with two smaller colonies off D'Urville Island (Schuckard 1998, 2006). Birds formerly bred at D'Urville Peninsula and Te Kuru Kuru Island (Taylor 2000). Surveys between 1992 and 2002 indicate a population of c.645 birds, including 102-126 breeding pairs (Schuckard 1998, 2006). Numbers are believed to have remained stable over the last 50 years (historical counts are lower, probably because they were conducted at different times of day) (Schuckard 1994, 1998). The maximum feeding distance from the Duffers Reef colony is 24 km (Schuckard 1994). |
|♦ Estimated area of occupancy (AOO) - km2:||1||♦ Continuing decline in area of occupancy (AOO):||Unknown|
|♦ Extreme fluctuations in area of occupancy (AOO):||No||♦ Estimated extent of occurrence (EOO) - km2:||1|
|♦ Continuing decline in extent of occurrence (EOO):||Unknown||♦ Extreme fluctuations in extent of occurrence (EOO):||No|
|♦ Number of Locations:||4||♦ Continuing decline in number of locations:||Unknown|
|♦ Extreme fluctuations in the number of locations:||No|
|Range Map:||Click here to open the map viewer and explore range.|