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#LocomotionInBirds
#Bird'sLocomotion
#FlightInBirds
#ActiveFlightInBirds
#PassiveFlightInBirds
#fscbiology
#irtisamsbiology
Birds fly by flapping their wings, steering mainly with their tails. Compared to the parts of an airplane, a bird’s wing acts as both wing and propeller. The basal part of the wing supplies most of the supporting surface, the wing tip most of the propelling force. A bird’s wing has many adjustable features: it can be shortened or lengthened by flexion; the feathers of the tip can be spread or closed; the angle of the whole wing or its parts-on one side or both-can be altered. All of these adjustments make the aerodynamics of a bird’s wing much more complicated than those of the airplane; consequently, the flight of a bird is much more varied and adaptable.
Fsc Biology lecture series by irtisamsbiology