292 KEY. 



b, bill, hooked. 



1, very large; bill, long with prominent pouch; C, 

 p. 30. 



2, smaller; uniformly dark; D, p. 32. 



3, tail, deeply forked; F, p. 35. 



F, p. 37. 



a, bill, hooked. 



1, middle tail feathers, projecting; A, p. 37. 



2, tail, square, rarely forked; B, p. 39. 



b, bill, pointed. 



1, dive from wing, C, p. 48. 



2, bill, compressed; under mandible, projecting; D, 

 p. 58. 



G, p. 59. 



1, habits, duck-like; small; A, p. 59. 



2, legs, very long; B, p. 62. 



3, wings, short; bill, very long; B, p. 62. 



4, wings, long; flight, swift; D, p. 68. 

 H, p. 98. 



1, bill, curved; B, p. 99. 

 I, p. 100. 



1, no plumes on head or body ; A, p. 101. 



2, plumes on head or body or on both; B, p. 103. 

 J, p. 110. 



1, bill, curved; A, p. 110. 

 K, p. 111. 



1, bill, straight: A, p. 111. 

 L, p. 112. 



