I see one of your hens has dark head and neck hackles, just curious how that is received among blue partridge breeders ?
Myself personally I like the look of the dark head/neck, and have breed for it in both my single and double laced blue laced red Brahma projects. My bids carry this trait from distant dark Cornish ancestry. I wonder how your.hen acquired this trait ? Another breed that might be a possible source is the Barnevelder.