How about: rafts float, flocks fly? And for me, it has to do with water and
land. Flocks forage. And, it also has to do with numbers and place. A large
flock on open water is a raft. And, a raucous flock of medium sized, black
corvids is a murder of crows.

Joe Mackie
jmackie at cc.wwu.edu
Bellingham