EIDER DUCK, BREASTS, YOUNG MALES. 
13. June 9th. Age, 11 months 
and 9 days. 
17. July gth. Age, 12 months 
and 9 days. V ery backward 
bird. 
21. Sept. 7th. Age, 14 months 
and 7 days. 
End of his first 
14. June 1 2th. Age, 11 months 
and 12 days. 
18. July 23rd. Age, 12 months 
and 23 days. First eclipse 
complete. 
22. Sept. 9th. Age, 14 months 
and 9 days. 2nd winter 
plumage commencing. 
and part of his second year. 
15. June 27th. Age, il months 
and 27 days, end of his first 
year. First eclipse nearly 
complete. 
19. Aug. 3rd. Age, 13 months 
and 3 days. 
23. Oct. l6th. Age, 15 months 
and 16 days. 2nd winter 
plumage well advanced. 
16. July 7th. Age, 12 months 
and 7 days, beginning of 
second year. 
20. Sept. 4th. Age, 14 months 
and 4 days. 
24. Nov. 6th. Age, 16 months 
and 6 days ; a late moulting 
bird. 
