group of swallows is called

A group of swallows is most commonly called a flight or a gulp of swallows.
Those are traditional “collective nouns” for the birds, similar to how we say a murder of crows or a murmuration of starlings.

A group of swallows is most commonly called a flight or a gulp of swallows.
Those are traditional “collective nouns” for the birds, similar to how we say a murder of crows or a murmuration of starlings.