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Like the ostrich, it is a fast-running, powerful bird of the open plains and woodlands. Also native to Australia and the islands to the north are the three species of cassowary. Shorter than an emu, but heavier and solidly built, cassowaries prefer thickly vegetated tropical forest.
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 ...
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 ...
The ostrich is the fastest bird on land, as well as the fastest running animal on two legs. [51] [52] The highest reliably measured running speed for ostriches is 61 km/h (38 mph), obtained by speedometer reading when a car was chasing an ostrich in a straight line chase to force it to move as fast as it could. [53]
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 ]
The bird's average lifespan is thought to be 10 to 15 years in the wild and up to 19 years in captivity. [29] The oldest confirmed secretarybird in the wild was a 5-year-old that was banded as a nestling on 23 July 2011 in Bloemfontein and recovered 440 km (270 mi) away in Mpumalanga on 7 June 2016.
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Bird flight is the primary mode of locomotion used by most bird species in which birds take off and fly. Flight assists birds with feeding, breeding , avoiding predators , and migrating . Bird flight includes multiple types of motion, including hovering, taking off, and landing, involving many complex movements.