Colorado Birder

Dark Intermediate Morph RTH

Dark red-tail with a sore & swollen foot

Comment by Theo Bauder on March 6, 2012 at 10:52pm

Nice shot.  What makes it an 'intermediate'? Is a 'full' all dark and very dark?

Comment by Jon Lutz on March 7, 2012 at 6:49pm

Western red-tails range from light to dark on a continuum and this bird could probably be considered dark or dark-intermediate.  There is enough rufous that I called her a dark-intermediate.  I go with Wheeler's "Raptors of Western North America" to make the call.

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