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In addition to the many resident birds, a considerable number of migratory species winter in the country to escape their northern breeding grounds. The avifauna of Indonesia include a total of 1809 species, of which 786 are endemic, and 3 have been introduced by humans. 150 species are globally threatened.
Ostrich oil is another product that is made using ostrich fat. Ostriches are of the genus Struthio in the order Struthioniformes , part of the infra-class Palaeognathae , a diverse group of flightless birds also known as ratites that includes the emus , rheas , cassowaries , kiwis and the extinct elephant birds and moas .
Ostriches are flightless birds of the family Struthionidae. The two extant species of ostrich are the common ostrich and Somali ostrich, both in the genus Struthio, which also contains several species known from Holocene fossils such as the Asian ostrich. The common ostrich is the more widespread of the two living species, and is the largest ...
The two extant species of ostrich are the common ostrich and Somali ostrich, both in the genus Struthio, which also contains several species known from Holocene fossils such as the Asian ostrich. The common ostrich is the more widespread of the two living species, and is the largest living bird species.
The common ostrich is the largest and heaviest living bird. Males stand 2.1 to 2.75 m (6 ft 11 in to 9 ft 0 in) tall and weigh 100 to 130 kg (220 to 290 lb), whereas females are about 1.75 to 1.9 m (5 ft 9 in to 6 ft 3 in) tall and weigh 90 to 120 kg (200 to 260 lb). [20]
Birds with eyes on the sides of their heads have a wide visual field, while birds with eyes on the front of their heads, such as owls, have binocular vision and can estimate the depth of field. [ 122 ] [ 123 ] The avian ear lacks external pinnae but is covered by feathers, although in some birds, such as the Asio , Bubo and Otus owls , these ...
Struthioniformes is an order of birds with only a single extant family, Struthionidae, containing the ostriches.Several other extinct families are known, spanning across the Northern Hemisphere, from the Early Eocene to the early Pliocene, including a variety of flightless forms like the Paleotidae, Geranoididae, Eogruidae and Ergilornithidae, the latter two thought to be closely related to ...
Most endemic birds are in the Wallacea region of eastern Indonesia. Sulawesi supports twelve endemic bird genera. Of all Indonesian endemic birds, about sixty-one species are threatened: thirty-seven species are listed as vulnerable, twenty-three are endangered and eleven species are listed as critical on the IUCN Red List of Threatened Species.