Bogey birds

I've discovered a new way to work out your bogey birds in your list be it local/national etc. Check out http://www.bubo.org/listing where the tables of lists can be converted into tables of blockers. These tables cabe reversed to see which are anti-blockers i.e. blue tit, crow, house sparrow etc. Work through the tables until you find the first bird you havent seen. I did it for my national list and no surprises arose really but for my Yorkshire list a few shockers did creep up. I guess with the smaller sample size some degree of skew can occur. Here are my bogeys according to bubo.

Nationally

1. Cetti's Warbler
2. Dartford Warbler
3. Red-crested Pochard
4. Firecrest
5. Hawfinch
6. Twite
7. Bean Goose
8. Ring-necked Parakeet
9. Chough
10. Black-winged Stilt
11. Temminck's Stint
12. Great White Egret
13. Green-winged Teal
14. Ring-necked Duck
15. Red-necked Phalarope
16. Hoopoe
17. Wryneck
18. Pomarine Skua
19. Spotted Crake
20. Ring-billed Gull

This seems to show a few of things, 1) where I live (oop north away from all the 'local' stuff) and 2) that i've only been birding a few years as there are a few fairly basic birds in there, finally 3) I'm lazy and can't be arsed to twitch crap thats too far like the stilts and Great White Egrets that i have seen abroad.

Yorkshire

• 1) Ring-necked Duck
• 2) Icterine Warbler
• 3)=Common Rosefinch
• 3)=Spotted Crake
• 3)=Little Tern
• 6)=Hoopoe
• 6)=Firecrest
• 6)=Pomarine Skua
• 6)=Red-crested Pochard
• 10)=Asian Desert Warbler (What!!!!)
• 10)=Temminck's Stint
• 10)=Shore Lark
• 10)=Dotterel
• 10)=Bean Goose
• 10)=Marsh Warbler
• 16)=Booted Warbler (A bit surprising)
• 16)=Glossy Ibis
• 16)=Richard's Pipit
• 16)=Pallas's Warbler
• 16)=Hume's Warbler
• 16)=Quail
• 16)=Long-tailed Skua
• 16)=Laughing Gull
• 16)=Bluethroat
• 16)=Great White Egret

Most of the weirdness is due to low numbers putting in Yorks lists on Bubo perhaps BUT its worth noting that a lot of the easy national stuff doesn't get anywhere near the top 20 Yorkshire bogeys. And Asian Desert Warbler does which is frankly mental.