The one which is not an advantage of flocking behavior is shared food sources. The correct option is D.
Flocking behavior is called when a species of animals are walking, living, or flying in small or large groups. This behavior can be seen in all animals except some who live in solitary.
Flocking save them from predators, as they are in groups and there are chances of mating, and it becomes easy to hunt.
Thus, option D. Shared food sources is correct.
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