Everything I have read re:smallmouth bass says YES! they are schooling fish. However, the river spot I have been fishing has yielded only one fish per outing. 2 weekends ago, I got one on a lipless crank. Yesterday was a spook. No matter what else I threw, I got zilch, nada, zippola. Granted, both times the fish were caught shortly after sunrise. I am fishing from shore and have maybe 200 yards of shore to work with, but only from one side and there is no downed timber (well, there is but it is out of reach and I want a boat just for that tree lol).
Every outing this year (save for the one time I was in a boat on Delavan Lake) I have had this problem, so the idea that was brought up about fish communicating to one another is starting to ring true for me.
What I have yet to find info on, though, is how river bass move in relation to time of day.