Here, far from leaky collections at Pensthorpe or Edinburgh Zoo (you had the Scarlet Ibis on yer patch yet, Proclaimers?) the Blackdog list has been nothing if not pure (excepting a Fife White-tailed Eagle, ahem). This knackered Guillemot was certainly not questioning the credentials of the Peregrine that was helping it to perform a merry jig and some fine breakdance moves.
So imagine my incredulity when the Peg allowed a close approach and revealed a bloody blue falconer's ring. I mean - it wasn't even a dodgy Gyr-like hybrid or something. Surely they just grab wild Peregrines from nests don't they? And it throws the whole year list into turmoil. Is this the same bird I've seen a hunting along the beach a handful of times these last few weeks? Do I need to do some list cleansing? And what about all those dodgy scoter - should I have checked those more closely for rings?
Whinchat and Turnstone (if you can believe their credentials) in last couple of weeks bring the now plastic-polluted list to 109 species (=86.51%).