Flock Video Wallpaper

Very Beautiful Real Video of flock of birds on your phone!

A flock is a group of birds conducting flocking behavior in flight,
or while foraging. The term is akin to the herd amongst mammals.
The benefits of aggregating in flocks are varied and flocks
will form explicitly for specific purposes. Flocking also has costs,
particularly to socially subordinate birds, which are bullied by more dominant birds;
birds may also sacrifice feeding efficiency in a flock in order to gain other benefits.
The principal benefits are safety in numbers and increased foraging efficiency.
Defense against predators is particularly important in closed habitats such
as forests where predation is often by ambush and early warning provided
by multiple eyes is important, this has led to the development of
many mixed-species feeding flocks.
These multi-species flocks are usually composed of small numbers of many species,
increasing the benefits of numbers but also increasing potential competition for resources.

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