Recorded live at Radio Studio Zurich on February 19, 1968, nearly seven months before Santana, previously considered the trio's debut , Bird Food is the earliest known document of the Pierre Favre Trio. The tape lay dormant in the drummer's personal archive for over half a century, until Pierre Favre and trombonist Samuel Blaser uncovered it while sorting through old recordings.

The trio brings together Pierre Favre on drums, Irène Schweizer on piano, and Jiří Mráz on bass, who would later become George Mraz in the United States, a legendary sideman for Dizzy Gillespie, Oscar Peterson, Stan Getz, and Tommy Flanagan. Four tracks, 29 minutes: Bird Food by Ornette Coleman, and three compositions by Irène Schweizer (Sounds II, Hinten, The Attack). A free jazz at once fiery and attentive, where every musician listens as much as they play.