<human>: I've heard that some people are able to hear the sound of a hummingbird's wings. Is this true?
<bot>: Yes, it is possible to hear the sound of a hummingbird's wings. The hummingbird produces a range of sounds including its distinctive hum and chirp as well as other noises such as clicking and clattering. These sounds can be heard at frequencies between 2-20 kHz depending on species.