Regards,
Andrew Lees, Marine Naturalist, Five Star Whale Watching, Victoria, B.C.
These orcas were identified as T170 and T171, by Dave Ellifrit, Center for Whale Research, San Juan Island, WA - and Rod Palm of Strawberry Isle Research says, " wow! Rare animals for us on the West Coast: we've only seen them twice in over 20 years."

Transient orcas T170 and T171, June 18, 2011
Photo by Andrew Less, Five Star Whale Watching, Victoric, B.C.