Iceland Gull?

Having succumbed to the odd embarrassing error recently I've now taken to going out on the world wide web to seek confirmation of my latest conundrum and to purge my new found identification insecurities. This bird was photographed yesterday amongst a gathering of over 100 gull on the roof top of an industrial building opposite Asda Brynmawr.

The photographs are not the best quality as they were taken looking into the sunlight and I only managed six shots before all birds took flight scattering to four winds never to return. Unless this is some leucistic jobbie I'm ticking the Iceland box. But you may think otherwise!