An amalgamation of metallurgists
A bale of turtles
A barren of mules
A bevy of beauties
A bevy of roebucks
A bloat of hippopotamoi
A bouquet of pheasants
A brood of hens
A building of rooks
A business of ferrets
A cast of hawks
A cete of badgers
A charm of finches
A cloud of theoretical meteorologists
A clowder of cats
A clutch of eggs
A colony of ants
A complex of psychologists
A congregation of plovers
A covey of partridges
A cowardice of curs
A crash of rhinoceroses
A cry of players/actors
A deceit of lapwings