Hi Connie!
On the issue of white fluff in tail feathers and hackles. When is the latest this can show up? The Cottage Hill boy I have doesn't have any...so far. Fingers crossed. The pullet doesn't either. I too am trying to breed my BC as close to the SOP as possible.
A few questions to throw into the discussion. Does anyone know if the white fluff (tail and hackle) is an issue with foreign (European: French, Belgium, German, etc.) Black Coppers or just a North American issue? And, has anyone done any genetic/DNA studies on the Marans to find color markers, etc. that might help determine what is going on? For example, looking at DNA from a Black Copper without white fluff versus one that does not have a hint of it. Another thought, most BCM chicks I have seen have white feathers on their wing tips, these molt out to black. Could this white fluff issue (I'm going to call this "WF" from now on) be related to these white wing feathers? I've seen in photos that the new LP BCM line chicks do not have white wing tips at all, I'm not sure if there is a WF issue with these birds since they are new to the scene. I'm interested to hear what folks have to say regarding these questions.
~Lisa
I'm posting this for photo reference to what I'm calling out above, this is in no way meant as an advertisement!!
http://www.copperhacklecoop.com/nonusa/index.php?option=com_content&view=article&id=9&Itemid=10