"Lazy Bird" is a jazz standard composed by John Coltrane, featured on his seminal 1957 album "Blue Train." It is a contrafact based on the chord changes of Tadd Dameron's "Lady Bird," showcasing Coltrane's early harmonic innovations within the hard bop style. The piece is known for its challenging chord progression and served as a vehicle for Coltrane's increasingly complex improvisations, hinting at the modal and harmonic explorations that would define his later work.