There are lots of guys here who breed true redtails and most due so for color amongst other things.
Yes, taking/using the best of the best will make the best of the best...
and there are certain areas that seem to export more boldly colored animals... one is the Esquissibo River (hope I spelled it right), I believe in Guyana.
If I were to recommend breeders for color I would say
Lee Barie, Barry Miller, Rob Tudehope, Bill Parks, and a few others...
within a couple hours the Suri guys will jump on and help you out alot more..
take care, Joe
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Thanks and take care - Joe Rollo
'Tis not the stongest of the species that will eventually survive, nor the most intelligent, but the one most responsive to change' Charles Darwin