I guess there could be an argument about these, as the greater coverts are more Herring Gull like than typical michahellis. Both birds have what looks like some 3rd generation scapulars, but they have indistinct sub-terminal marks. So are they late moulting 2nd generation or early moulting 3rd generation? Either way, a 1CY Herring Gull would never show this. P00922/3 are the same bird.