Collective nouns

A group of ships, particularly military vessels or a Navy is called an armada.

A group of larks is called an ascension or an exultation.

A group of turtles is called a bale.

A group of donkeys or mules is called a barren.

A group of quail is called a bevy or a covey.

A group of flowers gathered together so you can hold them or put them in a vase is called a bouquet, or sometimes just a bunch. Brides often carry a bouquet of flowers when they get married.

A group of grapes all together is called a bunch.

A group of hyenas is called a cackle.

A group of finches or hummingbirds is called a charm.

A club is an organized group of people. Clubs are generally formed around a common interest of all the members, and typically charge some kind of fee for membership or have some other restriction on who can join.
You may also be interested in the weapon, club.