Animal groups

Looking at the available words in the photograph:

a school of fish

a string of ponies (not horses)

a paddling of ducks (though they are a flock when flying)

a plague of locusts

Animal groups

Is the answer something like:

groups of ducks

group of horses

group of locusts

group of fish

For collective nouns I think it'd be flock of ducks, herd of horses, swarm of locusts, and shoal of fish.