234 EXPLANATION OF PLATES. 



Plate 9. 



Upper : Nest and eggs of pied-billed grebe, June 8, 1901, referred to on page 40. 

 Lower: Another nest, eggs covered, same locality and date. 



Plate 10. 



Upper: Pied-billed grebe on its nest, a photograph presented by Mr. Francis 



Harper. 

 Lower: Young pied-billed grebes just hatched, a photograph presented by 



Mr. Robert B. Rockwell. 



Plate 11. 



Upper : Nest and eggs of loou, June 7, 1913, from negative taken by Mr. Herbert 



K. Job for the author. 

 Lower: Nest and eggs of loon, June 23, 1912, referred to on page 49. 



Plate 12. 



Upper : Loon on its nest, published by courtesy of Bird-Lore. 

 Lower: Young loon swimming among lily pads, a photograph purchased from 

 Mr. S. S. S. Stansell. 



Plate 13. 



Upper : Nest and eggs of yellow-billed loon, referred to on page 61. 

 Lower : More distant view of the same nest. Both from negatives taken by 

 Rev. A. R. Hoare for th«^ author. 



Plate 14. 



Upper : Nesting site of Pacific loon, referred to on page 68. 

 Lower: Nest and eggs of Pacific loon, July 4, 1914. Both photographs pre- 

 sented by Mr. Winthrop S. Brooks. 



Plate 15. 



Upper: Nest and egg of red-throated loon, June 20, 1915, from negative taken 



by Mr. F. Seymour Hersey for the author. 

 Lower : Nest and eggs of red-throated loou, June 27, 1916. from negative taken 



by Mr. T. L. Richardson for the author. 



Plate 16. 



Upper: Nest and eggs of red-throated loon. 



Lower : Nearer view of same nest. Both photographs presented by Mr. Donald 

 B. MacMillan and pul)lislied by courtesy of the American Museum of Nat- 

 ural History. 



Plate 17. 



Upper: Burrow of tufted puffin, opened to show nest antl egg, .July 7, 1911. 



referred to on page 83. 

 Lower: Entrance to burrow of tufted puffin. July 4, 1911, referred to on page 83. 



Plate 18. 



Upper: Breeding colony of tufted puffin, referred to on page 84, a photograph 



presented by Mr. William L. Dawson. 

 Lower: Young tufted puffin, recently hatched, a photograph presented by Mr. 



William L. Finley. 



