[Mystery bird] Red-throated Loon, also known as the Red-throated Diver, Gavia stellata, photographed at Bodega Bay, California. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 12 May 2010 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/1000s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
This bird has a character that sets it apart from the others in the same genus and family, and this character has large effects upon the bird’s behavior. Can you tell me what this one character is?
This species is the smallest and lightest loon in its taxonomic family, with the largest wing-beat amplitude, all features that make it the only member of its family that can take off from the ground, or alight directly on it.