Herd:
Cattle (e.g., a herd of cattle)
Deer (e.g., a herd of deer)
Elephants (e.g., a herd of elephants)
Tribe:
Monkeys (e.g., a tribe of monkeys)
Meerkats (e.g., a tribe of meerkats) - Less common but used metaphorically.
Army:
Ants (e.g., an army of ants)
Frogs (e.g., an army of frogs) - Less common but used metaphorically.
Flock:
Birds (e.g., a flock of birds)
Sheep (e.g., a flock of sheep)
Geese (e.g., a flock of geese)
