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Bird flight. A flock of domestic pigeons each in a different phase of its flap. 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 ...
Flock (birds) Red-billed queleas form enormous flocks—sometimes tens of thousands strong. A flock is a gathering of individual birds to forage or travel collectively. [1] Avian flocks are typically associated with migration. Flocking also offers foraging benefits and protection from predators, although flocking can have costs for individual ...
Eurasian cranes in a V formation (video) Birds flying in V formation. A V formation is a symmetric V- or chevron-shaped flight formation.In nature, it occurs among geese, swans, ducks, and other migratory birds, improving their energy efficiency, while in human aviation, it is used mostly in military aviation, air shows, and occasionally commercial aviation.
A flock of barnacle geese during autumn migration. Examples of long-distance bird migration routes. Bird migration is a seasonal movement of birds between breeding and wintering grounds that occurs twice a year. It is typically from north to south or from south to north. Migration is inherently risky, due to predation and mortality.
Earthflight is a British nature documentary that shows a flight from the view of the wings of birds across six continents, showing some of the world's greatest natural spectacles from a bird's-eye view. [1] The BBC series was created by John Downer and narrated by David Tennant and consisted of six 60-minute episodes.
[102] [103] Red knots and dunlins were found in radar studies to fly 5 km per hour faster in flocks than when they were flying alone. [104] The birds flying at the tips and at the front are rotated in a timely cyclical fashion to spread flight fatigue equally among the flock members. The formation also makes communication easier and allows the ...
Birds are typically observed to fly in V-shaped formations or J-shaped formations, the latter commonly known as echelon. The first study to attempt to quantify the energy saving of a large flock of birds was Lissaman & Schollenberger [6] who provided the first, albeit notably flawed, [1] estimate for a 25-member flock of birds. A most ...
A mixed-species feeding flock, also termed a mixed-species foraging flock, mixed hunting party or informally bird wave, is a flock of usually insectivorous birds of different species that join each other and move together while foraging. [1] These are different from feeding aggregations, which are congregations of several species of bird at ...