The difference between Fowl and Rooster

When used as nouns, fowl means a bird, whereas rooster means a male domestic chicken () or other gallinaceous bird.

Fowl is also verb with the meaning: to hunt fowl.

Fowl is also adjective with the meaning: foul.

check bellow for the other definitions of Fowl and Rooster

Fowl as a noun (archaic):

A bird.
Fowl as a noun:

A bird of the order Galliformes, including chickens, turkeys, pheasant, partridges and quail.
Fowl as a noun:

Birds which are hunted or kept for food, including Galliformes and also waterfowl of the order Anseriformes such as ducks, geese and swans.

Fowl as a verb:

To hunt fowl.

Examples:

"We took our guns and went fowling."

Rooster as a noun (US, Kent, Australia, NZ):

A male domestic chicken () or other gallinaceous bird.
Rooster as a noun:

A bird or bat which roosts or is roosting.
Rooster as a noun (figuratively, obsolete, _, slang):

An informer.
Rooster as a noun (figuratively, obsolete, _, slang):

A violent or disorderly person.
Rooster as a noun (figuratively):

A powerful, prideful, or pompous person.
Rooster as a noun (figuratively, originally, _, US, _, slang, now, _, chiefly, _, NZ):

A man.
Rooster as a noun (regional, _, US, historical):

A wild violet, when used in a children's game based on cockfighting.
Rooster as a noun (obsolete, _, US, _, slang):

Legislation solely devised to benefit the legislators proposing it.