INDEX. 



Acanthis linaria, 194. 

 Accipiter cooperi, 122. 



velox, 122. 



Actitis macularia, 103. 

 J^gialitis semipalmata, 108. 



vocifera, 108. 

 Agelaius phoeniceus, 1G6. 

 Aggressive coloration, 44. 

 Aigrette plumes, 38. 

 Alaudidse, 158. 

 Albatross, 18, 19. 

 Alcedinidse, 134. 

 Ampelidae, 216. 

 Ampelis ceclrorum, 216. 

 Anatidae, 92. 

 Androdon, 32. 

 Anhingas, 32. 

 Anseres, 92. 



Antrostomus vociferus, 146. 

 Archseopteryx, 3, 4, 18. 

 Ardea herodias, 95. 



virescens, 96. 

 Ardeidse, 94. 

 Asio accipitrinus, 126. 



wilsonianus, 128. 

 Auk, Great, 20. 



Razor-billed, 20. 

 Auks, 20, 21, 28, 30. 

 Avocet, 32, 33. 

 Avocettula, 31. 



Bill, the, as a hand, 30. 



as a musical instrument, 30. 

 as a weapon, 31. 

 sexual adornment of, 30. 

 uses of, 30. 



Birds, altricial, 69. 



ancestors of, 2. 



beauty of, 9. 



bill of, 30. 



biography of, 73. 



characters of, 2. 



colors of, 35. 



distribution of, 4. 



economic value of, 5. 



eggs of, 68. 



evolution of, 14. 



feet of, 27. 



field key to, 75. 



flightless, 19. 



grace of, 10. 



how to identify, 71. 



mating of, 65. 



mental development of, 10. 



migration of, 48. 



musical powers of, 10. 



nests of, 65. 



number of species of, 1. 



place in Nature of, 1. 



pracocial, 69. 



relation to man of, 5. 



scientific value of, 5. 



songs of, 11, 62. 



tail of, 25. 



topography of, 74. 



voice of, 62. 



wings of, 17. 



young of, 70. 

 Bittern, American, 98. 

 Blackbird, Crow, 168. 



Red winged, 166. 

 Blackbirds, 55, 163. 



263 



