<unk> , or short wheezes, are brief, "squeaky" sounds; they are also referred to as squeaks. Their waveforms show a sinusoidal pattern with a duration 10 to 100 ms and a frequency between 200 and 800 Hz. Many birds have made sounds which are onomatopoeically described as<unk> ".<unk>  have been described in bird fancier's disease and other forms of hypersensitivity pneumonitis. They are also heard in a variety of conditions in which alveolitis is present. In one study they were found in 10% of patients with pneumonia.
Squawk 
Whitlow
Drustbed
Cowlick
Crutch
Superbill
Wart
Hangover