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Anna's hummingbird. Anna's hummingbird (Calypte anna) is a North American species of hummingbird. It was named after Anna Masséna, Duchess of Rivoli. It is native to western coastal regions of North America. In the early 20th century, Anna's hummingbirds bred only in northern Baja California and Southern California.
Male Allen's hummingbird. The courtship flight of male Allen's hummingbirds is a frantic back-and-forth flight arc of about 25 ft (7.6 m) similar to the motion of a swinging pendulum, followed by a high-speed dive from about 100 ft (30 m) during which tail feathers emit a characteristic sharp flutter to further attract attention of the female. [16]
Winter range. The rufous hummingbird (Selasphorus rufus) is a small hummingbird, about 8 cm (3 in) long with a long, straight and slender bill. These birds are known for their extraordinary flight skills, flying 3,200 kilometres (2,000 miles) during their migratory transits. It is one of nine species in the genus Selasphorus.
Most North American hummingbird species are migratory. Each year, these minuscule creatures head south to spend the winter thousands of miles away in the tropics—only to return again next spring ...
To sustain rapid wingbeats during flight and hovering, hummingbirds expend the human equivalent of 150,000 calories per day, [95] an amount estimated to be 10 times the energy consumption by a marathon runner in competition. [96] Hummingbirds can use newly ingested sugars to fuel hovering flight within 30–45 minutes of consumption.
Hummingbirds are extremely agile and acrobatic flyers, regularly partaking in sustained hovering flight, often used not only to feed on the wing but to protect their territory [22] and court mates. [17] The giant hummingbird is typical in that it will brazenly defend its energy-rich flower territory from other species and other giant hummingbirds.
Description. The bee hummingbird is the smallest living bird. [3][4] Females weigh 2.6 g (0.092 oz) and are 6.1 cm ( in) long, and are slightly larger than males, which have an average weight of 1.95 g (0.069 oz) and length of 5.5 cm ( in). [3] Like all hummingbirds, it is a swift, strong flier. The male has a green pileum and bright red throat ...
Binomial name. Calypte costae. (Bourcier, 1839) Range of C. costae. Breeding range. Year-round range. Wintering range. Costa's hummingbird (Calypte costae) is a bird species in the hummingbird family Trochilidae. [3] It breeds in the arid region of the southwest United States and northwest Mexico; it winters in western Mexico.
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