Mammals

• a sloth of bears
• a clowder of cats
• a drove of cattle
• a rag of colts
• a herd of elephants
• a skulk of foxes
• a trip of goats
• a drift of hogs
• a team of horses
• a troop of kangaroos
• a leap of leopards
• a pride of lions
• a nest of mice
• a labor of moles
• a troop of monkeys
• a string of ponies
• a litter of pups
• a warren or rabbits
• a crash of rhinoceroses
• a flock of sheep
• a pod of whales
• a pack of wolves

Reptiles/Amphibians

• a knot of toads
• a bed of snakes
• a nest of vipers

Birds

• a peep of chickens
• a murder of crows
• a charm of finches
• a gaggle of geese
• a brood of hens
• a siege of herons
• a parliament of owls
• a company of parrots
• a muster of peacocks
• a colony of penguins
• a host of sparrows
• a rafter of turkeys
• a wedgy of swans

Fish

• a school of fish
• a smack of jellyfish

Insects

• a colony of ants
• a swarm of bees
• an army of caterpillars
• a cluster of grasshoppers
• a plague of locusts

please inform me of any missing.