Fifebirder said:I've always assumed that we were supposed to refer to white-headed Cormorants like this as 'sinensis types' because you can't be sure that it's not an older carbo with more white than usual.
Jane Turner said:I've had it drummed into me that white-headed cormorants are as likely to be old males as sinensis... however:
I'm sure Martin (Garner) won't mind me posting this. I mean't to ask him why it was a def sinensis.. I gather they are getting quite numerous inland in Yorkshire.