Do black swans really exist?

Related questions

1. Did Nina in Black Swan die?
2. Does Swan Lake have a happy ending?
3. Who is Odile in Swan Lake?
4. How long does Swan Lake go for?
5. What mental illness does Nina have in Black Swan?
6. What is the story of Swan Lake?
7. When did Camille Saint Saens?
8. Do swans fly at night?
9. Is the dying swan part of Swan Lake?
10. Is Shutter Island a real island?

Tags

1. #which
2. #erratic
3. #southwest
4. #birds
5. #cygnus
6. #waterbird
7. #patterns
8. #bills
9. #climatic
10. #atratus
11. #within
12. #australia
13. #dependent
14. #black
15. #regions
16. #species
17. #migration
18. #southeast
19. #breeds
20. #swans
21. #plumage
22. #large
23. #nomadic
24. #mostly
25. #mainly
26. #conditions