It's A Beautiful Day ... OK, show of hands: How many thought they only had 1?
We had the first album (and by "we", I mean my friends and I at the time). I don't recall any of the songs other than White Bird; and I don't recall if I knew that they had other albums. My guess is that I didn't.
I just read their wikipedia page; and I can see where your thought of a "deep dive" would be warranted.
Oh, and according to Wikipedia, the song Don and Dewey "
was, to all intents and purposes, identical to Deep Purple's "Wring That Neck"", which they did in retaliation for Deep Purple taking one of Beautiful Day's songs as an intro to a Deep Purple song.