Sunday, January 16, 2011
None of my field guides, however, illustrate Rough-legged Hawks with such bright rufous flank feathers or with such a white tail. The photos of the perched bird only suggests its dark subterminal tail band. In the flying bird, the band is hardly visible. Is this a case of partial albinism (leucism)? Rough-legged Hawks are famously variably plumaged, and range from being almost completely dark to very pale. Look at the legs of this hawk. Above their bare, yellow toes, the legs are clearly feathered. This feathering is why the hawk is called rough-legged.
Posted by Dan Tallman at 10:39 AM