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There are seven species, divided in three genera. All but one species have gliding membranes between their front and hind legs. The genus Idiurus contains two particularly small species known as flying mice, but similarly they are not true mice. Colugos or "flying lemurs" (order Dermoptera). There are two species of colugo.
As is the case with many birds of prey, falcons have exceptional powers of vision; the visual acuity of one species has been measured at 2.6 times that of human eyes. [11] They are incredibly fast fliers, with the Peregrine falcons having been recorded diving at speeds of 320 km/h (200 mph), making them the fastest-moving creatures on Earth ...
In order for birds to balance these forces, certain physical characteristics are required. Asymmetrical wing feathers, found on all flying birds with the exception of hummingbirds, help in the production of thrust and lift. Anything that moves through the air produces drag due to friction. The aerodynamic body of a bird can reduce drag, but ...
The typical flight pattern is a series of flaps followed by a short glide. They are commonly found in wooded or shrubby areas. The genus Accipiter was introduced by the French zoologist Mathurin Jacques Brisson in 1760. [2] The type species is the Eurasian sparrowhawk (Accipiter nisus). [3] The name is Latin for "hawk", from accipere, "to grasp ...
None of these three families are known as particularly skilled or swift fliers, but are generally small enough that they would generally easily be more nimble in flight. One of these are the woodpeckers, if only for one species, the 131.6 g (4.64 oz) northern flicker (Colaptes auratus), which was the best represented bird species in the diet in ...
It is one of six families in the order Coraciiformes, which also includes the motmots, bee-eaters, todies, ground rollers, and kingfishers. The family gets its scientific name for Latin coracium , "like a raven", and the English name "roller" from the aerial acrobatics some of these birds perform during courtship or territorial flights.
The patterns of the superficial appearance include white patches or stripes that may distinguish some species. [6] Most species roost in caves, although some make use of hollow trees, rocky crevices, animal burrows, or other forms of shelter. Colony sizes also vary greatly, with some roosting alone, and others in groups up to a million individuals.
Characteristics of the Old-World species include "enlarged hands and feet, full webbing between all fingers and toes, lateral skin flaps on the arms and legs, and reduced weight per snout-vent length". [2] These morphological changes contribute to the flying frogs' aerodynamic abilities.