Everything about The Northern Royal Albatross totally explained
The
Northern Royal Albatross (
Diomedea sanfordi) is a large
seabird from the
albatross family. It was split from the closely related
Southern Royal Albatross as recently as
1998, though not all scientists support that conclusion and consider both of them to be subspecies of the
Royal Albatross. The Northern Royal Albatross can be distinguished from the Southern at sea by its upper wings, the plumage of which are all dark compared to the large areas of white on the Southern. The two species also differ in behaviour.
Northern Royal Albatrosses nest on the
Chatham Islands,
Enderby Island in the Auckland Islands, and at
Taiaroa Head on the Otago Peninsula, New Zealand. Their
colonies are denser than those of any other
great albatross. A single egg is laid in a nest which takes both parents around 80 days to incubate. The chick is brooded for a month, and is ready to
fledge after around 240 days. At sea Northern Royal Albatrosses have a circumpolar range, frequently feeding off the
Patagonian
shelf. They predominantly feed on
squid, which provides 85% of their diet by weight, but they also eat some fish.
Northern Royal Albatrosses are listed as an
endangered species. Their main breeding grounds on the
Chatham Islands have been badly damaged by a series of intense storms and the resulting lack of nesting material has lowered their breeding success. Chicks and eggs of birds breeding on the South Island have also been preyed upon by
introduced species.
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