not sure some type of Gull?

not sure some type of Gull?

Observation - not sure some type of Gull? - UK and Ireland. Description: Not sure about these, Was looking out for Cory Shearwaters but found these, lots of Gannets around, White necks Apologies over the photo, taken at quite a distance

Not sure about these, Was looking out for Cory Shearwaters but found these, lots of Gannets around, White necks Apologies over the photo, taken at quite a distance