Based of sightings of right whales in recent years off Chile, all coastal waters appear to be important areas used as migratory corridors. Southern right whale habitat is poorly known because of the small population size. Females have been recorded with calves in southern Peru 15°– 17° S, Antofagasta, Chile 23°-25°S, Valparaiso, Chile (31°-33°S), and Arauco to Osorno, Chile (37°-40°S), and there is a single record from Punta Arenas, Chile (53°S). Females in other populations produce calves at 3-5 year intervals and calves are born between June and October with a peak in August (Best 1994). The diet consists mainly of copepods and euphausiids (Tormosov et al. 1998).