30
THE ESSEX NATURALIST.
17. White-tailed Eagle. Haliaeetus albicilla albicilla (L.).
Geological, 17th century. Ref. 21, 29, 32.
18. Honey-Buzzard. Pernis apivorus apivorus (L.). 17th
century. Ref. 7, 13, 16, 35.
19. Osprey. Pandion haliaetus haliaetus (L.). Geological.
Ref. 37.
20. Common Heron. Ardea cinerea cinerea L. Pre-Roman,
12th, 13th, 16th, 18th centuries. Ref. 2, 11, 24, 41, 43.
21. Whooper Swan. Cygnus cygnus (L.). Geological.
Ref. 29, 33, 34, 37.
22. Bewick's? Swan. Cygnus bewickii bewickii Yarr.
Pre-Roman. Ref. 43.
23. Mute Swan. Cygnus olor (Gm.). 13th, 14th, 15th
centuries. Ref. 41, 42.
24. Grey Lag-Goose. Anser anser (L.). Geological. Ref. 29,
33, 34, 37.
25. Brent Goose. Branta bernicla bernicla (L.). Geological.
Ref. 37.
26. Sheld-Duck. Tadorna tadorna (L.). 17th century.
Ref. 5.
27. Mallard. Anas platyrhyncha platyrhyncha L. Geo-
logical, 18th century. Ref. 9, 22, 28, 33, 37, 41.
28. Gadwall. Anas strepera L. 18th century. Ref. 22,
28, 41.
29. Teal. Anas crecca crecca L. 18th century. Ref. 9,
22, 28, 41.
30. Garganey. Anas querquedula L. 18th century. Ref.
22, 28, 41.
31. Wigeon. Anas penelope. L. 18th, 19th centuries.
Ref. 9, 12, 22, 28, 41.
32 Pintail. Anas acuta acuta L. 18th century. Ref. 22,
28, 41.
33. Shoveler. Spatula clypeata (L.). 18th century. Ref.
22, 28, 41.
34. Common Pochard. Nyroca ferina ferina (L.). 18th
century. Ref. 22, 28, 41.
35. Ferruginous Duck. Nyroca nyroca nyroca (Guld.).
18th century, Ref. 22, 28, 41.
36. Tufted Duck. Nyroca fuligula (L.). 18th century.
Ref. 22, 28, 41.