“Southern Residents. This population consists of three pods, designated J, K, and L pods, that reside for part of the year in the inland waterways of Washington State and British Columbia (Strait of Georgia, Strait of Juan de Fuca, and Puget Sound), principally during the late spring, summer, and fall (Bigg 1982, Ford et al. 2000, Krahn et al. 2002). Pods have visited coastal sites off Washington and Vancouver Island (Ford et al. 2000), and are known to travel as far south as central California and as far north as the Queen Charlotte Islands (Figure 3). Winter and early spring movements and distribution are largely unknown for the population. Although there is considerable overlap in the geographic ranges of Southern and Northern Residents, pods from the two populations have not been observed to intermix (Ford et al. 2000). Genetic analyses using nuclear (microsatellite) and mitochondrial DNA indicate that the two populations are most likely reproductively isolated from each other (Hoelzel et al. 1998, Barrett-Lennard 2000, Barrett-Lennard and Ellis 2001). ”