What is a group of Swifts called?

A group of swifts is commonly called a Flock. Other collective nouns you may see include Kettle and Volery.

Collective nouns refer to a group or collection of individuals who share a common characteristic. In the case of swifts, these fascinating and agile birds are known for their remarkable flight capabilities, making their collective nouns particularly intriguing. One of the common collective nouns for swifts is a "screaming". This term aptly captures the high-pitched shrill calls often emitted by these birds during flight, resembling a rapid series of short, piercing screams. A group of swifts, specifically a screaming, twitter or swoop, creates a harmonious yet tumultuous soundscape as they race through the sky with unmatched speed and aerial dexterity. Alternatively, swifts can also be referred to as a "box" or a "bulge". These collective nouns emphasize the swifts' tight formations and cohesive flight patterns, closely resembling an energetic cluster or an elongated shape propelling through the air. Each individual within the box or bulge seemingly acts as a synchronized unit, maneuvering together as if sharing an invisible connection, adding beauty and grace to their flights. Observing a collective noun of swifts is a captivating experience. Whether witnessing their acrobatic displays as they swiftly bank and dart in perfect unison, or hearing their recognizable calls resonating through the air, these collectives offer a glimpse into the social nature and harmony of this unique bird species.