There are today about 10.000 species of birds, and 1186 of them are considered to be under threat of extinction. Except for 11 species, the threat is man-made.
Extinct species
Moas (Dinornithiformes). Large flightless birds on New Zealand, that were already extinct in 1642 when Europeans landed there.
Dodo (Raphus cucullatus). A meter-high flightless bird on Mauritius. It was hunted to extinction in the late 17th century, the last specimen killed in 1681. Of the 45 bird species originally found on Mauritius, only 21 have escaped extinction.
Great Auk (Alca impennis or Pinguinus impennis). At 75 centimeters, the flightless Great Auk was the largest of the auks. It was hunted to extinction for food and down for mattresses. The last pair were killed July 3, 1844.
Passenger pigeon (Ectopistes migratorius). The Passenger pigeon was once probably the most common bird in the world. It was hunted close to extinction for food in the late 19th century. The last one died in the Cincinnati Zoo in 1914.
Labrador duck (Camptorhynchus labradorius). This eider?-like sea duck was never very common. Although it has been hunted for food, it probably died out because of decline of mussels and shellfish due to pollution. The last one was seen at Elmira, New York in 1878.
Carolina parakeet (Conuropsis carolinensis).
[Bachman's Warbler]? (Vermivora bachmanii).
[Heath hen]? (Tympanuchus cupido).
[Hawaiian Akialoa]? (Hemignathus obscurus).
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