[cobirds] Of Swainson's Thrushes with backs olive or russet.

Greetings All,

I posted a pair of photos of a Russet-backed (Swainson's) Thrush from Andrick Ponds, Morgan County this spring with a comparative photo of an Olive-backed (Swainson's) Thrush and a reference to an apparent intergrade photographed this spring at Crow Valley.

http://www.flickr.com/photos/36088296@N08/

Good Birding

Steven Mlodinow 

Longmont CO

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