Genuine Azorean Gull influx?

On Sunday, three possible Azorean Gulls were reported in County Cork - at Clonakilty, Rosscarbery and Ballycotton. The first two (a near-adult and a somewhat retarded 3cy) were photographed:

http://www.irishbirding.com/birds/web/Display/sighting/47823/Yellowlegged_Gull.html
http://www.irishbirding.com/birds/web/Display/sighting/47822/Yellowlegged_Gull.html

This adds a fascinating twist to the story of Azorean Gull in Britain and Ireland. Perhaps these streaky-headed, dark-mantled gulls are atlantis after all? Although not worth jumping to any conclusions just yet, it must be noted that we've been subject to a series of trans-atlantic weather systems since the first around 16th August - indeed, the gales that affected much of southwest Britain and Ireland during that first system stemmed right from the Azorean archipelago. Worth thinking about, at least. For good measure, here are a dew more shots of the bird I had at Rainham last Tuesday: