What is the sound of a bluebird?

Bluebirds make a variety of sounds, but their most common call is a short, high-pitched note that sounds like "chur-bur-ee". They also make a longer, more warbling song that is often heard in the spring and summer. Bluebirds also make a variety of other sounds, such as a soft "chip" note, a harsh "chortle" note, and a low "growl" note.