remember when i wrote about a parliament of owls? well.
now you can have a whole government document on the subject of animal plurals. and how about some examples:
a murder of crows, of course.
an unkindness of ravens, yes.
a shrewdness of apes...
finally, i give you a business of ferrets.
also see donald burger's animal plurals site for more specific wonders, like a murmuration of starlings. and a gam of weasels.