As darkness falls and I sit here smugly basking in the glory of my wonderful Lifer (BOU 470), I was just contemplating what really does constitute a Mega? Rarity obviously, but something has always puzzled me about birds like Gyr and Snowy Owl. Species, location and odds on seeing also need to be considered. Don't get me wrong, an Eastern Crowned Warbler is a wonderful 1st and should be fully celebrated, but if you go, you see it! I know half a dozen experienced birders who still need Gyr as a lifer? To me it still is a Mega. Todays gutted twitchers would possibly agree?
p.s. Snowy Owl on Scilly was also a Mega moment for me