CONTENTS. XXI 



Page. 



60. Passerina nivalis townsendi Ridgway 152 



61 . Passerina ti yperborea Ridgway 153 



Genus 14. Calarius Bechstein 154 



Key to the Species and Subspecies of C'alcarius 155 



62. Calcarius lapponicus lapponicus ( Linnams) 155 



63. Calcarius lapponicus alascensis Ridgway 158 



64. Calcarius pictus ( Swainson) 160 



65. Calcarius ornatus ( To wnsend ) 162 



Genus 15. Rhy nchophanes Baird 164 



66. Rhynchophanes mccownii ( Lawrence ) 165 



Genus 16. Calamospiza Bonaparte 167 



67. Calamospiza melanocorys Stejneger 168 



Genus 1 7. Spiza Bonaparte 170 



Key to the Species of Spiza 171 



68. Spiza aniericana (Gmelin) 171 



69. Spiza townsendii (Audubon ) 174 



Genus 1 S. Chondestes Swainson 1 75 



Key to the Species and Subspecies of Chondestes 176 



70. Chondestes grammacus gramuiacus (Say) 176 



71 . Chondestes grammacus strigatus (Swainson ) 178 



( ienus 19. Pooecetes Baird 181 



Key to the Species an<.l Subspecies of Pooecetes 181 



72. Pooecetes gramineus graminens (Gmelin ) 182 



73. Pooecetes gramineus confinis ( Baird ) 184 



74. Po(Pcetes gramineus affinis INIiller 186 



Genus 20. Passerculus Bonaparte 187 



Key to the Species and Subspecies of Passerculus 188 



75. Passerculus princeps Maynard 189 



76. Passerculus sandwichensis sandwichensis (Gmelin ) 190 



77. Passerculus sandwichensis savanna (Wilson) 192 



78. Passerculus sandwichensis alaudinus (Bonaparte) 194 



79. Passerculus sandwichensis bryanti Ridgway 197 



80. Passercuhis beMingi Ridgway 198 



81 . Passerculus rostratus i-ostratus ( Cassin ) 199 



82. Passerculus rostratus sanctorum (Coues) 200 



83. Passerculus rostratus guttatus (Lawrence) 201 



84. Passerculus rostratus halophilus (McGregor) 202 



Genus 21. Centronyx Baird 202 



85. C'entronyx bairdii ( Audul)on ) 203 



Genus 22. Coturniculus Bonaparte 205 



' Key to the Si>ecies and Subspecies of Coturniculus 205 



86. Coturniculus savannarum savannarum (^( imelin ) 206 



87. Coturniculus savannarum passerimis (Wilson) 207 



88. Coturniculus savannarum obscurus (Nelson) 209 



89. Coturniculus savannarum bimaculatus (Swainson ) 209 



Genus 23. Ammodramus Swainson 211 



Key to the Species and Subspecies of Ammodramus 212 



90. Ammodramus maritimus maritimus ( Wilson ) 214 



91. Ammodramus maritimus mcgillivraii (Audubon) 216 



92. Ammodramus maritimus peninsulfe Allen 216 



93. Ammodramus maritimus fisheri Chapman 217 



94. Ammodramus maritimus sennetti Allen 218 



95. Ammodramus nigrescens Ridgway 219 



