THUNDERCLAN;
ThunderClan cats are known for their skill at stalking prey through forest and undergrowth.

SHADOWCLAN;
ShadowClan cats are known for their ability to walk quietly and avoid detection. They're also known for their willingness to eat frogs, toads, lizards, rats, and crowfood- foods most Clan cats turn their noses up at.

WINDCLAN;
WindClan Cats are known for their swift paws, which lend ease to catching prey such as rabbits on the open moors of their territory.

RIVERCLAN;
RiverClan is known for their skill at swimming. RiverClan cats are also known for their unique skill at scooping fish from the river.

STARCLAN;

StarClan is the home of the spirits of all cats' warrior ancestors. As each cat dies, they are visited by a member of StarClan, usually a cat they have known before, and taken to join starbound warriors.
StarClan is represented by Silverpelt, the sparkling swath of stars that stretches across the sky. StarClan is made up of cats from all Clans; however, individual cat-spirits retain their old loyalties and watch over cats from the Clans they used to belong to.
Clan cats look to starClan for help and guidance, but ultimately starClan does not control what happens to the Clans.

Other: This takes place before Firestar, Bluestar, etc.