I've noticed that a few of my young cockerels that are between 4-5 months start to develop funny colored hackle feather. It's usually a silver almost like Birchin and sometimes a dark mahogany. My birds are Blue and Black so it's pretty noticeable if it happens. I don't have this problem in any of my older birds, only young cockerels that are maturing. It's really starting to worry me as I show most of my birds and these odd colored hackle feathers would DQ them. I have always culled the cockerels who are being affected so I don't know is it goes away as they get older or if it gets worse. The birds seem completely healthy, but I'm wondering if it's some sort of mineral or vitamin deficiency or something
I have no clue to what it could be. All of my parent birds are completely normal. What could be wrong!?!
The bird on the upper left corner is a good example of what I'm talking about. He should be all black


The bird on the upper left corner is a good example of what I'm talking about. He should be all black
