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The black swan (Cygnus atratus) is a large waterbird, a species of swan which breeds mainly in the southeast and southwest regions of Australia. Within Australia, the black swan is nomadic, with erratic migration patterns dependent on climatic conditions. It is a large bird with black plumage and a red bill.
The mute swan is closest to the Southern Hemisphere Cygnus; [31] its habits of carrying the neck curved (not straight) and the wings fluffed (not flush) as well as its bill colour and knob indicate that its closest living relative is the black swan.
The bill measures 10.5–12 cm (4.1–4.7 in), up to twice the length of a Canada goose (Branta canadensis) bill; the trumpeter swan bill is the largest of any waterfowl species in the world. The legs are gray-pink in color, though in some birds can appear yellowish gray to even black. The tarsus measures 10.5–12 cm (4.1–4.7 in).
The Roman satirist Juvenal wrote in AD 82 of rara avis in terris nigroque simillima cygno ("a rare bird in the lands, and very like a black swan"). [6] He meant something whose rarity would compare with that of a black swan, or in other words, as a black swan was not thought to exist, neither did the supposed characteristics of the "rare bird" with which it was being compared.
Nassim Taleb, who wrote the book The Black Swan about unpredictable events, is worried about the role of the U.S. dollar in global finance.. It stems from Western sanctions that froze Russian ...
[4] [15] Among standard measurements of the mute swan, the wing chord measures 53–62.3 cm (20.9–24.5 in), the tarsus is 10–11.8 cm (3.9–4.6 in) and the bill is 6.9–9 cm (2.7–3.5 in). [4] The plumage is white, while the legs are dark grey. The beak of the mute swan is bright orange, with black around the nostrils and a black nail.
A former ballerina was sentenced to 20 years in prison Tuesday in the 2020 shooting death of her estranged husband in Florida. CBS affiliate WTSP reports that Ashley Benefield was sentenced to 20 ...
Black Swan was presented in a sneak screening at the Telluride Film Festival on September 5, 2010. [40] It also had a Gala screening at the 35th Toronto International Film Festival later in the month. [41] [42] In October 2010, Black Swan was screened at the New Orleans Film Festival, [43] the Austin Film Festival, [44] and the BFI London Film ...