I have 4 Colombian Cochins all white with black tail feathers which is typical. They have varying black speckles on the neck and cape. The rooster has started to show a caramel tinge that has become almost dominate with the snow white almost evident only on the legs and butt and underside. This color change has been occurring through out the summer. Could it be something leading up to the molt? One hen had the slightest caramel tinge showing down the back of her head. Almost non-distinguishable as this point. Might what Im seeing on the Rooster be something diet related? They are all very active, healthy good spirited the two hens lay daily with the youngster approaching 4 months very white and healthy her black tail feathers are now showing no signs of this coloration the other hen her mother also no sign. Im concerned with this change in color with the rooster. Its like he has developed a rust in his feathers. Not unattractive but changing color is puzzling me. . Has anyone ever seen this happen and can you tell me why? Chilibean shows a slight tinge on the back of her head, hard to tell yet, but Cowboy started out very subtle also Speckles I'm not seeing any sign yet and she is the sister of Chilibean. Her hatch, Jazzmin, who is 3 months 10 days old also no sign of the color change Cowboy was until 3 months ago snowy white with the typical black spotted hackles and tail feather then the color change.