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The disc is spun displaying the illusion of motion of a man jumping from a pole in a circle at the center of the disc and of a birds and butterflies in flight in a circle at the outer edge of the disc.
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.
Birds (flying, soaring) – Most of the approximately 10,000 living species can fly (flightless birds are the exception). Bird flight is one of the most studied forms of aerial locomotion in animals. See List of soaring birds for birds that can soar as well as fly. Townsends's big-eared bat, (Corynorhinus townsendii) displaying the "hand wing"
Ploey: You Never Fly Alone (Icelandic: Lói: Þú flýgur aldrei einn; released in some European countries as Flying the Nest) [1] is a 2018 animated adventure film directed by Árni Ásgeirsson and written by Friðrik Erlingsson. [3] The film score was composed by Atli Örvarsson.
In flight with wing spurs clearly visible. The masked lapwing is the largest representative of the family Charadriidae.It measures from 30 to 37 cm (12 to 15 in) in length and has a wingspan of 75–85 cm (30–33 in), and has a conspicuous yellow spur on the carpal joint of each wing.
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 ...
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The flows around birds and insects can be considered incompressible: The Mach number, or velocity relative to the speed of sound in air, is typically 1/300 and the wing frequency is about 10–103 Hz.