||Anas aucklandica (Gray, 1844)
||Auckland Teal, Brown Teal
||Cerceta Alicorta de Auckland
||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. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
||48 cm. Small, flightless, dark brown duck. Brown eclipse male, female, juvenile. Mottled, dark brown breast. Prominent white eye patch. Breeding male, glossy green head, very narrow white collar, flank patch. Voice Soft, high-pitched wheezy whistles and popping (male), low quacks and growls (female).
|Red List Category & Criteria:
||Butchart, S. & Symes, A.
||Hitchmough, R. & Williams, M.
||Benstead, P., Mahood, S., Martin, R, McClellan, R., Taylor, J.
This species is classified as Vulnerable because it has a very small population. The possibility of accidental introductions of invasive mammal species to the islands is a continuing concern, although the species occurs at enough locations to be relatively secure in the short term.
|Previously published Red List assessments:|
- 2013 – Vulnerable (VU)
- 2012 – Vulnerable (VU)
- 2008 – Vulnerable (VU)
- 2006 – Vulnerable (VU)
- 2004 – Vulnerable (VU)
- 2000 – Vulnerable (VU)
- 1996 – Vulnerable (VU)
- 1994 – Not Recognized (NR)
- 1988 – Not Recognized (NR)
|Range Description:||Anas aucklandica is endemic to New Zealand where it has permanent populations on Ewing, Enderby, Rose, Ocean, Adams, Disappointment and Dundas Islands in the Auckland Islands group. The total area of the seven islands is 113 km2 but, with the exception of Disappointment Island, birds were predominantly dispersed along island shorelines, but now occur throughout Adams Island at least (M. Williams in litt. 1999). It formerly bred on Auckland Island itself, where there are records from the 1940s but it is now excluded from that island due to the presence of feral pigs and cats (Williams 2013). Three population estimates suggest that total numbers do not exceed 600 individuals, three indicate numbers of more than 1,000 (Moore and Walker 1991), and one suggests a population of more than 2,000 birds (Heather and Robertson 1997). The population appears to be stable. |
|♦ Estimated area of occupancy (AOO) - km2:||42||♦ Continuing decline in area of occupancy (AOO):||Unknown|
|♦ Extreme fluctuations in area of occupancy (AOO):||No||♦ Estimated extent of occurrence (EOO) - km2:||880|
|♦ Continuing decline in extent of occurrence (EOO):||Unknown||♦ Extreme fluctuations in extent of occurrence (EOO):||No|
|♦ Number of Locations:||7||♦ 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.|