The term refers to a whole bunch of types of birds--like the
Laughing-thrush, the Rock-thrush, the Quail-thrush, the Thrush
Nightingale, and even the Thrush Babbler, to name but a few.
In addition, a yeasty fungal infection of the mouth occurring
most often in babies or people with HIV or otherwise compromised
immune systems is also called thrush.