Figure 54.4 Migration of North Pacific Humpback Whales North Pacific populations of the humpback whale (Megaptera novaeangliae) migrate between their winter breeding grounds off Mexico, Hawaii, and Japan and their summer feeding grounds in the Gulf of Alaska and Northeast Pacific coast. A 2006 survey of North Pacific humpback whales determined that close to 20,000 individuals migrate in five separate populations (represented by different colored arrows).