Humpback whales are migratory and only eat during half the year.[6] They will typically spend the summer months (May through September) in feeding grounds with cooler waters that they return to every year.[6] They have been documented feeding in areas such as Southeast Alaska and off the coast of Antarctica.[6] During the other half of the year humpbacks will spend time in their breeding grounds where they do not eat at all. During their feeding season humpback whales will actively feed for up to twenty-two hours a day.[2] They do this so they can store enough fat reserves to live through their breeding season.[5]