In the waters of Puget Sound and the San Juan Islands there are two different types of killer whales known as transient and resident Orcas. Transient orcas travel a much broader range than residents.
The transient orcas we see here travel between Alaska and the mid-Californian coast and travel in small pods, usually between one and seven whales. They feed primarily on marine mammals such as seals and sea lions but will also form large temporary pods in order to attack other species of whales like the gray or minke. There is no socializing, interaction or breeding between transient and resident orcas.