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  2. Bird flight - Wikipedia

    en.wikipedia.org/wiki/Bird_flight

    Lesser flamingos flying in formation. When in gliding flight, the upward aerodynamic force is equal to the weight.In gliding flight, no propulsion is used; the energy to counteract the energy loss due to aerodynamic drag is either taken from the potential energy of the bird, resulting in a descending flight, or is replaced by rising air currents ("thermals"), referred to as soaring flight.

  3. Lift (soaring) - Wikipedia

    en.wikipedia.org/wiki/Lift_(soaring)

    Lift is a meteorological phenomenon used as an energy source by soaring aircraft and soaring birds. The most common human application of lift is in sport and recreation. The three air sports that use soaring flight are: gliding, hang gliding and paragliding. Energy can be gained by using rising air from four sources: Thermals (where air rises ...

  4. Flying and gliding animals - Wikipedia

    en.wikipedia.org/wiki/Flying_and_gliding_animals

    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"

  5. Origin of avian flight - Wikipedia

    en.wikipedia.org/wiki/Origin_of_avian_flight

    Drag-based, and later lift-based, mechanisms evolved under selection for improved control of body position and locomotion during the aerial part of the attack. Selection for enhanced lift-based control led to improved lift coefficients, incidentally turning a pounce into a swoop as lift production increased.

  6. Finland’s Birds Captured In 60 Breathtaking Up-Close Images ...

    www.aol.com/lifestyle/finland-birds-captured-60...

    Award-winning photographer Tom Nickels captures the beauty and grace of Finland’s birds, transforming its serene forests and icy lakes into breathtaking stages for his art. Initially drawn to ...

  7. Tradeoffs for locomotion in air and water - Wikipedia

    en.wikipedia.org/wiki/Tradeoffs_for_locomotion...

    The combination of forces acting on a wing allow a net upwards force, deemed lift. For birds to achieve flight, they must first successfully overcome the downward pull of gravitational forces by producing lift. This is achieved by positioning or moving their wings in a way that makes the pressure below the wings higher than above the wings.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Dynamic soaring - Wikipedia

    en.wikipedia.org/wiki/Dynamic_soaring

    Dynamic soaring is a flying technique used to gain energy by repeatedly crossing the boundary between air masses of different velocity.Such zones of wind gradient are generally found close to obstacles and close to the surface, so the technique is mainly of use to birds and operators of radio-controlled gliders, but glider pilots are sometimes able to soar dynamically in meteorological wind ...

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