For a British based life-list I got 1630 for part one, 1510 for part two, and 1295 for part 3, giving a cumulative total of 4435. Can I ask why Green Heron is only worth 20 points? Also you've missed Lesser Canada Goose, and I added up the numbers and got a figure closer to 8500, are you sure you've added um' up right?
Cheers and good idea!
D