The Canadian Press has a story about sightings of blue whales on the British Columbia coast. The 2,000 whales on the West Coast of North America(there are about 10,000 in the world), usually range off California and Baja California. But in the past few years climate changes has moved their food source, away from there.
The research is in a paper in Marine Mammal Science. The lead author is John Calambokidis, of Cascadia Research.