tjbirdofprey
Dorset birder in Spain
whats your rarest bird you have ever seen in the uk is it a mega or just a local scarcity, is it your own blood sweat and tears found bird or a well reported rarity.Go on tell me you know you want to....
Apart from that probably the rarest was Black-faced Bunting (Leigh), or Oriental Pratincole (Gimmingham).
Welll the listers don't class it as rare, but with a latest global population estimate of only 15,000, Buff-breasted Sandpiper is really the rarest bird I've seen in the UK. It's unlikely that many of the UK megas are nearly as rare in a global context, which is the most important one.
Graham