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Bird measurement or bird biometrics are approaches to quantify the size of birds in scientific studies. The variation in dimensions and weights across birds is one of the fundamental sources of diversity among birds, and even Within species, dimensions may vary across populations within species , between the sexes and depending on age and ...
A bird strike was recorded at this height in 1973. Common crane: Grus grus: Gruidae: 10,000 metres (33,000 feet) This height was recorded above the Himalayas. [2] This great height allows them to avoid eagles in mountain passes. [2] Bar-headed goose: Anser indicus: Anatidae: 8,800 metres (29,000 feet) [2] [4] [5]
The next largest living species is the king penguin, which grows to a maximum of 1 m (3.3 ft) in height and 18 kg (40 lb) in weight. [139] Now extinct, Anthropornis nordenskjoeldi, is believed to have reached a height of 1.8 m (5.9 ft) and a weight of up to 108 kg (238 lb). [140] The Eurasian eagle-owl is one of the biggest owls.
The common English name ladybird originated in Britain where the insects became known as "Our Lady's birds". [ 6 ] [ 7 ] Mary ("Our Lady") was often depicted wearing a red cloak in early art, and the seven spots of the species Coccinella septempunctata (the most common in Europe) were said to represent her seven joys and seven sorrows . [ 8 ]
Ornithoptera alexandrae, the Queen Alexandra's birdwing, is the largest species of butterfly in the world, with females reaching wingspans slightly in excess of 25 to 28 cm (10 to 11 in).
For a lone potoo, or a brooding adult with a potential predator close to the nest, the bird attempts to avoid detection by remaining motionless and relying on camouflage. If ineffective, the potoo breaks cover and attempts to intimidate the predator by opening its beak and eyes wide open while vocalizing or simply flies out of reach.
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 ...
There are an additional 146 species whose presence in the United States is only within one or more U.S. territories; some of those species have become extinct. The total number of bird species on the list is 1267 (i.e. the 1120 bird species found in the 50 states and District of Columbia, plus the 146 species found only in the U.S. territories).