EXPLANATION OF PLATES. 



Plate 1. 



A flock of pintails on the Ward-Mcllhenny Reservation, Louisiana, January 1, 1910, 

 presented by Mr. Herbert K. Job. 



Plate 2. 



Upper: Nesting site of American mergansers, Lake Winnipegosis, Manitoba, June 



19, 1913, referred to on page 3. 

 Lower: Nest and eggs in above locality, rocks removed to expose it, June 16, 1903, 



presented by Mr. Walter Raine. 



Plate 3. 



Upper: Nest and eggs of American merganser, among bales of hay in an old ice 

 house, Lake Winnipegosis, Manitoba, June ]8, 1913, bales removed to expose the 

 nest, referred to on page 4. 



Lower: Nesting stub of American merganser, Grand Lake, Maine, June 3, 1920, 

 presented by Mr. Frederic H. Kennard. 



Plate 4. 



Upper: Female American merganser on her nest. Four Brothers Islands, Lake Cham- 

 plain, New York, July 8, 1910, presented by Mr. Francis Harper. 



Lower: Young American mergansers. Eagle Lake, California, May 27, 1921, presented 

 by Mr. Jules Labarthe, sr., and Mr. Milton S. Ray. 



Plate 5. 



Upper: Nest and eggs of red-breasted merganser, under balsam firs, branches cut 

 away to expose the nest, Magdalen Islands, Quebec, June 21, 1904, referred to on 

 page 15. 



Lower: Another nest of same in above locality, in thick grass, June 20, 1904, referred 



to on page 15. 



Plate 6. 



Nesting box occupied by hooded merganser, near Tacoma, Washington, April 21, 

 1907, presented by Mr. J. Hooper Bowles, referred to on page 24. 



Plate 7. 



Upper: Nest and eggs of mallard, among " niggerheads, " St. Michael, Alaska, June 



9, 1915, from a negative taken by Mr. F. Seymour Hersey for the author. 



Lower: Nest and eggs of mallard, in a clump of reeds. North Dakota, presented by 



Mr. Herbert K. Job. 



Plate 8. 



Left: Mallard on her nest, 10 feet up on the limb of a maple, among ferns, near 

 Tacoma, Washington, March 17, 1913, presented by Mr. J. Hooper Bowles, referred 

 to on page 37. 



Right: Nest and eggs of mallard, under a rosebush. Crane Lake, Saskatchewan, June 

 21, 1905, presented by Mr. Herbert K. Job. 



Plate 9. 



Upper: Immature male mallard assuming first winter plumage, in captivity at 



Ithaca, New York, presented by Dr. Arthur A. Allen. 



Lower: Young mallard, 5 weeks old. Lake Winnipegosis, Manitoba, August 1, 1913, 



presented by Mr. Herbert K. Job. 



241 



