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South America has two species of rhea, large fast-running birds of the Pampas. The larger American rhea grows to about 1.4 metres (4 ft 7 in) tall and usually weighs 15 to 40 kilograms (33–88 lb). [18] The smallest ratites are the five species of kiwi from New Zealand. Kiwi are chicken-sized, shy, and nocturnal.
The bird that can achieve the greatest airspeed is the peregrine falcon (Falco peregrinus), able to exceed 320 km/h (200 mph) in its dives. [1] [2] A close relative of the common swift, the white-throated needletail (Hirundapus caudacutus), is commonly reported as the fastest bird in level flight with a reported top speed of 169 km/h (105 mph ...
The peregrine falcon is the fastest bird, and the fastest member of the animal kingdom, with a diving speed of over 300 km/h (190 mph). [1] The fastest land animal is the cheetah . Among the fastest animals in the sea is the black marlin , with uncertain and conflicting reports of recorded speeds.
Peregrine falcons have a flicker fusion frequency of 129 Hz (cycles per second), very fast for a bird of its size, and much faster than mammals. [60] A study testing the flight physics of an "ideal falcon" found a theoretical speed limit at 400 km/h (250 mph) for low-altitude flight and 625 km/h (388 mph) for high-altitude flight. [ 61 ]
This was fitting with the rhea being a flightless ground bird. Depending on the South American region, the rhea is known locally as ñandú guazu ( Guaraní –or related Tupi nhandú-gûasú – meaning "big spider" [ 5 ] most probably concerning their habit of opening and lowering alternate wings when they run), [ citation needed ] ema ...
This is a list of bird species recorded in South America. South America is the "Bird Continent": It boasts records of 3486 species, more than any other. (Much larger Eurasia is second with 3467.) Colombia's list alone numbers 1907 confirmed species, and both Brazil's and Peru's confirmed lists also exceed 1850.
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Bird ringing is the term used in the UK and in some other parts of Europe, while the term bird banding is more often used in the U.S. and Australia. [49] bird strike The impact of a bird or birds with an airplane in flight. [50] body down The layer of small, fluffy down feathers that lie underneath the outer contour feathers on a bird's body. [51]