Blackbird

"Blackbird" is a song written by Paul McCartney of The Beatles (credited Lennon/McCartney). It was included on the compilation album Love. It originally appeared on 1968 Beatles album The White Album. The Love version of this song is only the guitar part, with no words, and flows into the song Yesterday, also by Paul McCartney. On The White Album, the song came between two other songs about animals: Piggies and Rocky Raccon. Blackbird is the only song by The Beatles that has only one instrument part, other than a metronome and synthesized bird song sounds.

Credits
Wikipedia