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Written by an evolutionary biologist/ornithologist who writes about E3 -- Evolution, Ecology and Ethology -- and the subtle relationships between these phenomena, especially in birds.
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Topic Categories: Birding • Education • Mystery Birds • Photography • Teaching • Travel
Posted on: October 13, 2009 9:59 AM, by "GrrlScientist"
tags: Olive Sparrow, Arremonops rufivirgatus, birds, mystery bird, bird ID quiz
[Mystery bird] Olive Sparrow, Arremonops rufivirgatus, photographed at Santa Ana Wildlife Refuge, Alamo, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 4 April 2008 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/60s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
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Comments
Looks like an Olive Sparrow. Olive colored back, pale breast, rufus/brown stripes on the head and very abundent at Santa Ana. Cool little bird!
Posted by: Ben Lizdas | October 13, 2009 10:34 AM
Agreed on olive sparrow. Per Sibley: "dull brown stripes", "high, arched supercilium", and "pale grayish" below.
Posted by: John Callender | October 13, 2009 11:27 AM
ditto on the Olive Sparrow, and did you read my mind?, I was just this morning working on my bird records from a trip 20 years ago to Santa Ana NWR, and he joined my life list that day! Kaufmann says dull olive above, grayish below. Head gray with dull brown stripes on crown...found in South Texas only.
Posted by: Ruthie | October 13, 2009 12:49 PM
ditto all above!
Special Bird ID Request
Brian Switek of the Laelaps science blog http://scienceblogs.com/laelaps/2009/10/photo_of_the_day_732_grouse.php has posted what I think is a female Dusky Grouse (Dendragapus obscurus) on one of his entries today which some of you might like to check out and confirm/deny my ID (it could possibly be a Sooty Grouse, Dendragapus fuliginosus, bearing in mind both that Dusky and Sooty were once considered the same species- Blue Grouse, but I'm not sure it's range extends to the Yellowstone)
Posted by: David | October 14, 2009 11:06 AM
re. Dusky vs Sooty Grouse from Western Birds, Volume 38, No3, 2007:
[Banks, R. C., Cicero, C., Dunn, J. L., Kratter, A. W., Rasmussen, P. C., Remsen, J. V., Jr., Rising, J. D., and Stotz, D. F. 2006. Forty-seventh supplement to the American Ornithologists’ Union Check-list of North Birds. Auk 123:926-936.]
Posted by: David | October 14, 2009 12:55 PM