Ferret: A business or fesnyng of ferrets
Finches: A charm of finches
Fox: A skulk or leash of foxes
Frogs: An army or colony of frogs
Hares: A down or husk of hares
Hawks: A cast or kettle of hawks
Herons: A hedge of herons
Jellyfish: A smack of jellyfish
Kittens: A kindle of kittens