I suggest a Flutter of Butterflies, When a baby, my younger son Spoonerized butterfly as flutterby. I rather like it myself, yes, even better than flury, swarm and "rabble" ! rabble is *not* for butterflies ... sorry tsuwm.
I Googled the society and made my bid with them, via email, for A Flutter of Butterflies" ... it is a very pretty and informative site.