I agree completely with Michael Price that the seesaw banking from side to
side is characteristic of Marbled Murrelet and with Jack Bowling that it
definitely isn't the flight of Cassin's Auklet. I will add that Cassin's
Auklets have been turning up in protected waters (all the way in to Puget
Sound) much more in the past few years, perhaps because of El Nino (add
your own tilde) conditions. Distribution is a good clue, but--with these
highly motile animals, the birds--shouldn't be used to eliminate a species
from consideration.

Dennis Paulson, Director phone 206-756-3798
Slater Museum of Natural History fax 206-756-3352
University of Puget Sound e-mail dpaulson at ups.edu
Tacoma, WA 98416