Eastern Lesser Whitethroat on Little Orme

After a great morning's birding which included 3 Surf Scoters, 2 Velvet Scoter and a Little Auk off Old Colwyn, followed by another Little Auk and 5 Purple Sands at Rhos Point, I received a text from Pete Alderson saying he had seen a Lesser Whitethroat on the Little Orme. Knowing that a December Lesser Whitethroat would be a good record and possibly an eastern type bird, I shot straight up. Half an hour later the bird appeared and immediately looked good as its back and nape was brownish. 

Here are some initial pics...... More research later but I suspect it's a Blythi type Siberian bird.