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. 
Prate 10. 
Upper: Pied-billed grebe on its nest, a photograph presented by Mr. Francis 
Harper. 
Lower: Young pied-billed grebes just hatched, a Pnoaree presented by 
_Mr. Robert B: Rockwell. 
a ee oe PLATE 11, 
Upper: Nest and eggs of loon, 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. 
‘ Prate 12,° 
Upper: Loon on its nest, published by courtesy: of. Bird-Lore. ; 
Lower: Young loon swimming sMORE lily pads, a photograph purchased from 
Mr. S. S. S. Stansell. 
Tere ; dee : PLaTE 18. 
Uber! Neat 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 the author. 
Ge Gas & Waites : .., 'sPLATE 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, ji une 20, 1915, from negative taken 
by Mr. F. Seymour Hersey for the author. 
Lower: Nest and eggs of red-throated loon, June 27, 1916, from negative taken 
by Mr. T. L. Richardson for the author. 
Prate 16. | 
Upper: Nest and eggs of red-throated loon. , 
Lower: Nearer view of same nest. Both photographs pieesented by -Mr. Donald 
B. MacMillan and published by courtesy of the American Museum of Nat- 
_ ural History. 
es Prats 17. 
Upper: Burrow of tufted pufiin, openéd to show nest and egg, July 7, 1911; 
referred to on page 83. 
Lower: Entrance to burrow of tufted puffin, July 4, 1911, referred to on page 83. 
3 
Prater 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. 
