S5, E12: A bird in hand -- Dr. Kelso (Ken Jenkins) is outraged when he discovers that a bird has been living in Sacred Heart. Citing the spread of infection to be the number one cause of deaths in hospitals, Kelso, orders the Janitor (Neil Flynn) to dispose of it immediately. However, the Janitor likes the bird so much he secretly keeps it as a pet. J.D. (Zach Braff), annoyed that Elliot (Sarah Chalke) is hooking up with Keith (Travis Schuldt), tries to get his intern fired. Donald Faison, Judy Reyes and John C. McGinley also star.