Editing Grey teal (section)

=== New Zealand range ===
The grey teal is a self-introduced species to New Zealand from Australia, where it is much more abundant.<ref name="New Zealand Journal Of Zoology">{{cite journal | last=Mills | first=J. A. | title=Status, mortality, and movements of grey teal (''Anas gibberifrons'') in New Zealand | journal=New Zealand Journal of Zoology | volume=3 | issue=3 | date=1976 | issn=0301-4223 | doi=10.1080/03014223.1976.9517916 | doi-access=free | pages=261–267}}</ref> It was rare in New Zealand until the 1950s when several natural events in Australia led to a huge increase in numbers. Now it is a very common waterbird that can be found throughout New Zealand,<ref name="field guide"/> where its [[Māori language|Māori]] name is tētē.<ref>{{Cite web |date=17 February 2015 |title=Wetland birds |url=https://teara.govt.nz/en/photograph/14645/grey-teal |website=Te Ara}}</ref> However, there are areas where the species are more concentrated (larger populations) such as the districts of Hawke's Bay, Waikato, South Auckland and Otago.<ref name="New Zealand Journal Of Zoology"/> Grey teal are also more likely to be found in the Canterbury region and more specifically around Lake Ellesmere.<ref name="New Zealand Birds Online">{{cite web | title=Grey teal {{!}} Tētē-moroiti | website=New Zealand Birds Online | date=2012-08-02 | url=https://www.nzbirdsonline.org.nz/species/grey-teal }}</ref> ''Anas gracilis'' has also been seen wandering in the small New Zealand islands such as Chatham Islands (July 1951, December 1998) or Snares Islands (November 1987).<ref name="New Zealand Birds Online"/> In general the New Zealand grey teal population is smaller than the Australian population.