Synthliboramphus antiquus
grrlscientist | June 25, 2010tags: Ancient Murrelet, Synthliboramphus antiquus, birds, mystery bird, bird ID quiz
[Mystery bird] Ancient Murrelet, Synthliboramphus antiquus, photographed zigzagging rapidly roughly 15m below the waves off the south side of Alki Point, Seattle, Washington. [I will identify this bird for you in 48 hours]
Image: Ron Shimek [larger view].
Olympus OM-10 in an Ikelite Housing, Kodachrome 64 film.
Please name at least one field mark that supports your identification.
This poorly-known mystery bird species has two remarkable behaviors that are thought to reduce predation at the nest -- what…