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Great auk
Great auk
The "Great Auk, Northern Penguin, or Gair-Fowl", wood engraving by Thomas Bewick in A History of British Birds, 1804
The "Great Auk, Northern Penguin, or Gair-Fowl", wood engraving by Thomas Bewick in A History of British Birds, 1804
Summer (standing) and winter (swimming) plumage, by John Gerrard Keulemans
Summer (standing) and winter (swimming) plumage, by John Gerrard Keulemans
Paintings showing variation in egg markings, as well as seasonal and ontogenic differences in plumage
Paintings showing variation in egg markings, as well as seasonal and ontogenic differences in plumage
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King penguins (Aptenodytes patagonicus). Penguins are a well-known example of flightless birds.
King penguins (Aptenodytes patagonicus). Penguins are a well-known example of flightless birds.
An Okarito kiwi (Apteryx rowi), also known as the rowi
An Okarito kiwi (Apteryx rowi), also known as the rowi
Common ostrich (Struthio camelus). Ostriches are the largest extant flightless birds as well as the largest extant birds in general.
Common ostrich (Struthio camelus). Ostriches are the largest extant flightless birds as well as the largest extant birds in general.
An extinct moa. Until the arrival of humans, New Zealand's only mammals were bats and seals, resulting in many bird species evolving to fill the open
An extinct moa. Until the arrival of humans, New Zealand's only mammals were bats and seals, resulting in many bird species evolving to fill the open niches. While many of New Zealand's flightless birds are now extinct, some, such as the kiwi, kākāpō, weka, and takahē have survived to the present day.