What do you call a group of birds flying together?

The story behind the answer

The correct term is “a flock.” In ornithology and everyday English, a group of birds—especially of the same species—moving or feeding together is called a flock. Flocking improves aerodynamics, helps birds spot predators, and makes finding food more efficient; think of geese drafting in a V-formation or starlings swirling in a synchronized “murmuration.”

To remember the difference: flock flies; gaggle is for geese on land (in flight, geese form a “skein”); a covey is a small group of game birds like quail or partridge, usually on the ground; and a colony describes birds that nest together, such as seabirds on cliffs. “Flock” is the broad, go-to term for birds flying together.