A group of hummingbirds is called a bouquet, a fittingly delicate term for one of the most jewel-like birds on the planet. Hummingbirds’ iridescent feathers, tiny size, and close association with flowers, their primary food source, make “bouquet” feel less like a metaphor and more like a literal description of the scene when several gather at a feeder or flowering shrub.
Hummingbirds are largely solitary and territorial by nature, so a genuine gathering of several birds usually happens only around a concentrated, high-value food source, like a feeder or a particularly nectar-rich stand of flowers, rather than reflecting any real social bonding between the birds themselves.
Bonus fact: a hummingbird’s heart can beat over 1,200 times per minute during flight, and their wings move in a figure-eight pattern that lets them hover in place and even fly backward.
Hummingbirds are also described using other collective nouns like a charm, a glittering, and a shimmer, all leaning into the same visual dazzle.
Related: Collective Nouns for Birds · What Is a Group of Hummingbirds Called?