UGH, just lost a long reply due to accidentally hitting the page back key.....
I don't have any I've noticed losing crescents or color in that area. I do have a very red male from EBV that has some red areas turning brown near the head. I'll see if I can get a pic to show the change.
I'd love to see updated pics of my babies. So often they just go away and I never see them again. 2006 had some really cool crescent oddities pop up in the BO-PO pairing. Too bad they didn't have the color of my 2005 babies. I kept a pair of "Blush" babies to see if I can cross them over into the higher color lines.
Blush BO-PO-18 "Lon"



And Blush BO-PO-03 Lily


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Thanks,
Dave Colling

www.rainbows-r-us-reptiles.com
0.1 Wife (WC and still very fiesty)
0.2 kids (CBB, a big part of our selective breeding program)
LOL, to many snakes to list, last count:
20.28 BRB
14.18 BCI
And those are only the breeders 
lots.lots.lots feeder mice and rats 