For the full story, see the North Pacific Cassin’s Auklet Wreck fact sheet, posted to our website.
Following the Dec 20/21 weekend, COASST participants have seen a wave of Cassin’s Auklets hit the beaches, from Clallam County, Washington to Humboldt County, California. Combining reports from beached bird programs across North Pacific (see previous blog) preliminary estimates suggest that tens of thousands of these birds are washing ashore, at the rate of 10-100 times “normal.”
The Cassin’s Auklet, Ptychoramphus aleuticus is a small (about 200g, or 7 oz) krill and larval fish-eating seabird that breeds along the West Coast of North America from Alaska south to Baja California, Mexico. A majority of birds ( ~80% of the world’s population) breed in the Scott Island group, off the Northwest tip of Vancouver Island. Need more info? Check out BC’s Coast Region Species of Conservation Concern Fact Sheet.
As of Jan 6, 2015, the northern coast of Oregon (Columbia River south to Heceta Head) has had the highest regional per kilometer counts, at 4.3 Cassin’s Auklets/km (Nov) and 5.2 Cassin’s Auklets/km (Dec). The highest per kilometer encounter rate on a COASST survey is from Bayocean Spit (near Tillamook, OR) at 71 birds/km.