It's A Beautiful Day formed in 1967 in San Francisco. They achieved moderate success but nowhere near the popularity of some of their "summer of love" contemporaries.
Their leader, David LaFlamme, had been a violin soloist with the Utah Symphony Orchestra
Their best known song, White Bird, comes from their self-titled initial album, released in 1969. And it demonstrates the group's unique approach to music, a catchy fusion of rock, jazz, folk and classical genres. The group split up in 1974.