Ringstone Edge

2 Continental Cormorants, P c sinensis. The rear edge of the yellow gular patch drops vertically from the gape.

This race is less bulky on average than British Cormorant, P c carbo. 

Cormorants seem to me to be much more common in Calderdale than they were 30 years ago. If this is a real increase, it is likely to be of sinensis, because they breed inland while carbo breed on the coast. It could be that most of the Cormorants we see now are P c sinensis. But we don't know this, because identifying Cormorants to race does not seem to interest many birders. (This does need a side-on photograph).