So who's got the best blockers on their UK list. The blocker would be rated higher if:
1. The bird was only seen by a v limited number of people. Score 5 if less than 5 people saw, 4 if less than 10 saw, 3 if less than 50, 2 if less than 100 and 1 if more than 100
2. It was seen a v long time ago - score 5 if before 1970, 4 if in 70s, 3 if in 80s, 2 if in 90s and 1 if in 00s
3. The worldwide population is so low that it suggests it may not be seen here again - score 5 if less than 100, 4 if 100-500, 3 if 500-1000, 2 if 1000 to 5000, and 1 if 5000+
4. Distance the bird probably travelled - score 5 if over 8,000 miles, 4 if 8000-4000 miles, 3 if 4000-2000, 2 if 2000-1000 and 1 if less than 1000
Doubt there will be many scoring 20, but could be interesting anyway.
I tend to think purely in terms of return time which makes Little Whimbrel (1985) probably my best blocker, but clearly many older birders have stuff that will blow that away.
John
[QUOTE=Farnboro John]I tend to think purely in terms of return time which makes Little Whimbrel (1985) probably my best blocker, but clearly many older birders have stuff that will blow that away.
John[/QUOTE]Just one or two.
POP