Agree Harry, he was so helpful and unassuming. I met him at the Gann when I went to see the semi p sandpiper and didn't realise who it was until afterwards; he had given me a masterclass in small wader id in the nicest possible way!
A group of us were at the Strum lookout before Elfyn's Irish excursion one August long ago and he was there, seated, with an entourage on lookout for him. His experienced eye could id a flying speck miles out which could be checked by lesser mortals as it came closer and again he would explain what it was about the bird that led to his judgement: brilliant.