Hummingbirds get their name from the humming sound their wings make during flight. Unlike most birds, whose wingbeats are too slow to produce a continuous tone, hummingbirds beat their wings so fast (12 to 90 times per second, depending on the species) that the motion creates a steady, audible hum. The English word “hummingbird” first appeared in 1637, in the writing of Thomas Morton, an English colonist in America.
What Creates the Humming Sound
The hum isn’t just the sound of air being pushed around. Each time a hummingbird’s wing sweeps forward or back, it generates lift and drag forces that create rapid pressure fluctuations in the surrounding air. Those pressure waves radiate outward at the speed of sound, and because the wingbeats repeat so quickly, the pulses blend into a continuous tone your ears perceive as a hum. A 2021 study published in eLife confirmed this by simultaneously recording the aerodynamic forces and wing movements of hovering hummingbirds, showing that the pitch and character of the hum map directly onto the oscillating forces each wing produces.
The sound is more complex than a simple buzz. The basic wingbeat frequency produces a fundamental tone, but that tone also generates higher-pitched overtones through the interaction between the wing’s changing speed and the forces it creates. These layered harmonics give the hummingbird’s hum its distinctive timbre, the quality that makes it sound different from, say, a large bumblebee even at a similar pitch.
Wings Built for Speed
Hummingbird wingbeat rates range from about 12 beats per second in the largest species to around 90 beats per second in the smallest. That translates to roughly 720 to 5,400 beats per minute during hovering. For context, most songbirds flap only a few times per second during cruising flight. The hummingbird’s rate is fast enough to fall squarely within the range of frequencies humans can hear (we detect sounds starting around 20 cycles per second), which is why the wing noise registers as a musical tone rather than individual flaps.
Hummingbirds also generate lift on both the downstroke and the upstroke, unlike most other birds. This means their wings are pushing air and creating pressure waves in both directions of every wingbeat cycle, effectively doubling the acoustic output compared to a bird that only produces force on the downstroke.
Some Species Add Extra Sounds
Beyond the basic hum, certain hummingbird species produce additional flight sounds using specialized feathers. Male broad-tailed hummingbirds, for example, have a narrowed outer wing feather that creates a metallic whistling trill during flight. They use this sound to defend courting territories.
Male streamertail hummingbirds produce a distinctive pulsed tone around 858 Hz, a pitch roughly two octaves above middle C. For years, researchers assumed their long decorative tail feathers made the sound. But experiments showed that tail-less streamertails still produced it. The real source turned out to be two specific wing feathers near the wingtip. During each downstroke, one of these feathers bends slightly, opening a gap that allows both feather tips to flutter rapidly, vibrating at the same frequency as the sound. Manipulating either feather reduced the sound significantly. These are subtle structural modifications: you’d barely notice them by looking at the feathers, but they turn the wing into a sound-producing instrument on top of its flight function.
What Other Cultures Called Them
English speakers named the bird after its sound, but other languages took different inspiration. In Spanish, “picaflor” (flower-pecker) and “colibrí” describe behavior and appearance. Portuguese “beija-flor” means flower-kisser. These names focus on the bird’s relationship with flowers rather than the noise it makes.
Indigenous names across the Americas reflect an even wider range of observations. The Comanche word for hummingbird likely derives from a root meaning “flutter.” The Mojave name “nyírnyír” may be sound-imitative, capturing the wing noise much like the English term does. Several Indigenous cultures also placed the hummingbird in prominent mythological roles. In Gabrielino tradition, the hummingbird was one of the first people. Among Western Mono communities, the hummingbird was associated with the golden eagle because, in their stories, it once spoke to the people on the eagle’s behalf. The Cahuilla have a story in which the hummingbird wanted to play the eagle’s role as mediator but was too small.
The English name, by comparison, is purely descriptive. Thomas Morton and other early colonists in the 1630s heard the sound before they fully understood the bird, and the name stuck. It remains one of the more literal bird names in the language: a bird that hums.