tags: Black-throated Sparrow, Desert Sparrow, Amphispiza bilineata, birds, mystery bird, bird ID quiz
[Mystery bird] Black-throated Sparrow, also known (erroneously) as the Desert Sparrow, Amphispiza bilineata, photographed in Falcon State Park, Falcon Heights, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 5 April 2008 [larger view].
Nikon D200, Kowa 883 telescope 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 species has one character that sets it apart from all others…
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