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Message: <blockquote data-quote="Richard Klim" data-source="post: 1387903" data-attributes="member: 773">Indeed.  Preston & Beane 1993 BNA Online also references Taverner:"Buteo jamaicencis "krideri". Probably not a valid subspecies; unclear if breeding range exclusive of other races exists. When compared with adjacent races, "kriderii" exhibits only a dilution or suppression of color, varying greatly among individuals (Taverner 1936). Distribution and taxonomic status require thorough examination. Presumably intergrades with all adjacent races. Winters from S. Dakota and s. Minnesota south to Arizona, Louisiana, and central Mexico. Scattered reports of extremely pale individuals from much of se. U.S."Clark himself notes in his 2001 Raptors of the World:"Whitish individuals found sparingly on Great Plains throughout range of borealis and formerly regarded as separate subspecies ('krideri'), but in fact merely pale morph of that race."Richard</blockquote>