Respuesta :

It’s a natural survival strategy. They are one of the most social birds in North America

Answer:

Why are they social? Bomberger Brown explains, “Cliff swallows are one of the most social birds in North America. They all live together in large colonies.” The colonies are a natural survival strategy. Swallows are aerial insectivores, meaning they eat insects that they catch in flight.

Explanation:

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