Where does the saying bald as a coot come from?

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Tags

1. #appearance
2. #several
3. #origin
4. #white
5. #coots
6. #phrase
7. #water
8. #baldness
9. #heads
10. #birds
11. #feathers
12. #doesn
13. #which
14. #streaked
15. #their
16. #whose
17. #marked
18. #markings
19. #meanings
20. #refer