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The eight living pelican species were traditionally divided into two groups, one containing four ground-nesters with mainly white adult plumage (Australian, Dalmatian, great white, and American white pelicans), and one containing four grey- or brown-plumaged species which nest preferentially either in trees (pink-backed, spot-billed and brown ...
This huge bird is by a slight margin the largest of the pelican species and one of the largest living flying bird species. It measures 160 to 183 cm (5 ft 3 in to 6 ft 0 in) in length, 7.25–15 kg (16.0–33.1 lb) in weight and 245 to 351 cm (8 ft 0 in to 11 ft 6 in) in wingspan.
The Pelecaniformes / p ɛ l ɪ ˈ k æ n ɪ f ɔːr m iː z / are an order of medium-sized and large waterbirds found worldwide. As traditionally—but erroneously—defined, they encompass all birds that have feet with all four toes webbed.
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The great white pelican was formally described in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae under the current binomial name Pelecanus onocrotalus. [2] [3] The species is treated as monotypic: no subspecies are recognised. [4] The specific epithet onocrotalus is Latin meaning "pelican". [5]
The brown pelican is the smallest of the eight extant pelican species, but is often one of the larger seabirds in their range nonetheless. [15] [16] It measures 1 to 1.52 m (3 ft 3 in to 5 ft 0 in) in length and has a wingspan of 2.03 to 2.28 m (6 ft 8 in to 7 ft 6 in). [6]
American white pelicans gathering at Pelican Island National Wildlife Refuge in Florida. Brown pelicans can also be seen in the center, and at the left and right margins. With wings spread, showing black remiges. The American white pelican rivals the trumpeter swan, with a similar overall length, as one of the longest birds native to North ...
The Australian pelican is not globally threatened. They are usually fairly common in proper habitats. At the aforementioned temporary inundation of Lake Eyre in March 1990, over 200,000 adult birds were found to be breeding. The species is legally protected and does not seem to be showing any immediate adverse effects from pollution.