Charm...
What a beautiful word for a group of hummingbirds!
Then we have murder for a group of crows, which sounds funny... and mysterious, while an unkindness or a privilege refers to a group of ravens.
From time to time, I look up these names for groups of animals and wonder who came up with these references to groups of animals and how these words stuck.
I know only a few of them: a school (of fish), an army (of ants), a band (of coyotes), a pride (of lions), a swarm (of bees), a pod (of dolphins), a caravan (of camels), a herd (of cattle), a convocation (of eagles), a tower (of giraffes), a parade (of elephants), a shiver (of sharks), a host (of sparrows), a pack (of wolves), and a team (of horses).
I've found a somewhat complete list online:
https://www.yourdictionary.com/articles/animal-group-names
