More on beaked whales
I just came across an interesting paper about acoustic detection of beaked whales in NE Pacific: http://iwc.int/cache/downloads/d7fplcuoyx448s4gks4wgw4og/SC-64-SM21.pdf
There are a few species known in California from a small number of sightings; it has been presumed that they are always there, but go undetected. The paper shows that they normally occur farther S, and the strandings in California are likely stray individuals.
Another take-home message is that the waters around Palmyra Atoll are a fantastic place to check out.