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17 Cards in this Set
- Front
- Back
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Specially shaped wings of the bird allow for ______.
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lift
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Each wing is shaped like an ___.
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airfoil
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The wings that extend from the bird's hand to the tip of the wing are called __ ___ ___.
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primary flight feathers
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The "engine" of the bird is the __ ___, that generate thrust.
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pectoral muscles
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The most strenuous part of the bird's flight is the ___.
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takeoff
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___ is the simplest kind of flight, using minimal energy.
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Gliding
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The ____ has the greatest wingspread of living birds.
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albatross
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The ___ __ is the world's fastest flying bird.
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peregrine falcon
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____ are claws of a bird.
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Talons
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Rising convection currents, used by birds to glide, are known as _________.
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thermals
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When birds glide on a rising air masss, the bird is _____.
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soaring
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__,__ and ___ are well-known soaring birds.
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Eagles, hawks and vultures
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_________ _____ is when a bird flaps for a while and glides or coasts for a while.
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Intermittent flight
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___ and ______ often use intermittent flight.
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Pelicans and storks
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Many _____ birds will flap for a while, then fold their wings and rest for a while.
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songbirds (kingfishers and woodpeckers)
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The _____ is known to be the best hover bird. (able to remain stationary in the air)
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hummingbird
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The ____ (bird's thumb) helps the bird gain lift at slow speeds.
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alula
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