242 BULLETIN 126, UNITED STATES NATIONAL MUSEUM. 



Plate 10. 



Upper: Adult male mallard in full plumage in September. 



Lower: Adult male mallard in eclipse plumage. Both photoi^raphs of birds in cap- 

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



Plate 11. 



New Mexican duck, young male, Las Cruces, New Mexico, July 27,U920, presented 



by Mr. Wharton Huber. 



Plate 12. 



Upper: Nesting site of black duck, Magdalen Islands, Qtiebec, June 21, 1904, referred 



to on page 52. 

 Lower: Nest and eggs of the same in above locality. 



Plate 13. 



Upper: Nest and eggs of black duck, Magdalen Islands, Quebec, presented by Mr. 



Herbert K. Job. 

 Lower: Black duck on her nest, a photograph purchased from Mr. Bonnycastle Dale, 



Plate 14. 



Upper: Nest and eggs of gadwall, Teton County, Montana, May 30, 1918, presented 



by Mr. A. D. Du Boia. 

 Lower: Nest and eggs of gadwall, in a clump of reeds. Stump Lake, North Dakota, 



June 15, 1901, referred to on page 80. 



Plate 15. 



Nest and eggs of gadwall, San Luis Valley, Colorado, presented by [theTColorado 

 Museum of Natural History. 



Plate 16. 



Upper: Young gadwall, 2 weeks old, Lake Winnipegosis, Manitoba, July 28, 1913, 



presented by Mr. Herbert K. Job. 

 Lower: Nest and eggs of gadwall, Shoul Lake, Manitoba, June 28, 1912, presented 



by Mr. Herbert K. Job. 



Plate 17. 



Upper: Nest and eggs of baldpato, in a clump of nettles, Stump Lake, North Dakota, 



May 31, 1901. 

 Lower: Another nest of same, in thick, tall grass, same locality and date. Both 



referred to on page 90. 



Plate 18. 



Upper: Nesting site of European teal, Unalaska, Alaska, June 8, 1911, referred to 



on page 99. 

 Lower: Nest and eggs of same, above locality and date. 



Plate 19. 



Upper: Nest and eggs of green-winged teal. Crane Lake, Saskatchewan, June 21, 



1905, presented by Mr. Herbert K. Job. 

 Lower: Another nest of same, Alberta, June 16, 1906, presented by Mr. Walter Raine 



Plate 20. 



Nest and egga of green-winged teal. Alberta, a photograph purchased from Mr. S. 8. 

 S. Stansell. 



Plate 21. 



Upper: Green-winged teal in full plumage, adult male. 



Lower: Adult male of same in nearly full eclipse plumage. Both photographs of 

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



