Wiktionary
black cock
n. (context Scotland Wales Northern England English) the black grouse.
WordNet
black cock
n. male black grouse [syn: blackcock]
Usage examples of "black cock".
She could hear her cunt sucking him back in on every upstroke, could smell the scent of their combined arousal as he impaled her with his long, thick, black cock.
He shuffled forward slowly, his pelvis and great bulging black cock shoved out and quivering like a savage limbo dancer caught in the hypnotic throes of a primeval jungle ceremony.
I know the words to release both you and me, and the black cock here too, but not your young friend yonder.
At this sound, the little black cock sitting on the rafter woke and crowed.