The Rufous hummingbird flies from northern Alaska to Mexico and back-a journey of On each trip, it travels 9,000 to 12,000 miles (15,000-20,000 km).įASTEST SWIMMING FISH OVER SHORT DISTANCES It migrates from Canada and Labrador to Antarctica and the Austral Sea. Everest found choughs standing on the summit. Some climbers reported having seen specimens of geese flying at 28,000 feet (8,500 m) over the Himalayas.Ī group of climbers on Mt. Most birds fly between 25 and 45 miles per hour (40 and 70 km/h), but the fastest birds can beat the cheetah, the most famous of the fast animals.įlying at high altitudes requires a strengthened circulatory system to make up for the scarcity of oxygen in the air.īLACK SWAN 27,000 FEET (8,230 M) OF ALTITUDE, according to a pilot who witnessed a flock over the Hebrides Islands In 1973 a Ruppell's griffon vulture crashed into an airplane flying over the Ivory Coast at this altitude.įlying Altitude commonly reaches 20,000 feet (6,000 m). Considering its small size, it is surprising that the Selasphorus rufus, or Rufous hummingbird, which is only 4 inches (10 cm) long, carries out an extensive round-trip migration each year from northern Alaska to Mexico. The fastest swimmer is the Gentoo penguin, which can swim 22.4 miles per hour (36 km/h). Many species can reach an altitude of 6,600 feet (2,000 m), although climbers have seen geese flying over the Himalayas at more than 26,000 feet (8,000 m). Most birds travel at speeds between 25 and 45 miles per hour (40-70 km/h), but when diving, peregrine falcons can reach more than 200 miles per hour (320 km/h). The world of birds is amazing when expressed in numbers.
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