XXn CONTENTS. 



Page. 



96. Ammodramus caudacutus caudacutus (Gmelin) 220 



97. Ammodramus caudacutus nelsoni Allen 221 



98. Ammodramus caudacutus subvirgatus Dwight - 223 



99. Ammodramus leconteii (Audubon) - 224 



100. Ammodramus henslowii henslowii (Audubon) 226 



101. Ammodramus henslowii occidentalis Brewster 228 



Genus 24. Plagiospiza Ridgway - - - 229 



102. Plagiospiza superciliosa (Swainson) 229 



Genua 25. Aimophila Swainson - - 230 



Key to the Species and Subspecies of Aimophila 233 



103. Aimophila quinquestriata (Sclater) 236 



104. Aimophila mystacalis (Hartlaub) 236 



105. Aimophila humeralis Cabanis - - 237 



106. Aimophila ruficauda ruficauda (Bonaparte) 238 



107. Aimophila ruficauda lawrencii (Salvin and Godman) 239 



108. Aimophila acuminata Salvin and Godman 240 



109. Aimophila sumichrasti Lawrence 240 



110. Aimophila carpalis (Coues) 241 



111. Aimophila notosticta (Sclater and Salvin) 242 



112. Aimophila rufeacens rufescens Swainson 243 



113. Aimophila rufescens pallida Nelson and Palmer 245 



114. Aimophila rufescens sinaloa Ridgway 245 



] 15. Aimophila mcleodii Brewster _ 246 



116. Aimophila ruficeps ruficeps (Cassin) 246 



117. Aimophila ruficeps sororia Ridgway 248 



118. Aimophila ruficeps scottii (Sennett) 248 



119. Aimophila ruficeps australis (Nelson) 250 



120. Aimophila ruficeps fusca (Nelson) 250 



121. Aimophila ruficeps eremoeca (Brown) 251 



122. Aimophila ruficeps boucardi (Sclater) 252 



123. Aimophila cassinii (Woodhouse) _ 253 



124. Aimophila sestivalis sestivalia (Lichtenstein) 254 



125. Aimophila sestivalis bachmanii (Audubon ) 256 



126. Aimophila botterii botterii (Sclater) 257 



127. Aimophila botterii sartorii Ridgway 259 



128. Aimophila botterii petenica (Salvin) 260 



Genus 26. Amphispiza Coues 261 



Key to the Species and Subspecies of Amphispiza 262 



129. Amphispiza bilineata bilineata (Cassin) 263 



130. Amphispiza bilineata deserticola Ridgway 265 



131. Amphispiza bilineata grisea Nelson 266 



132. Amphispiza belli belli (Cassin) 267 



133. Amphispiza belli cinerea Townsend 269 



134. Amphispiza belli nevadensis Ridgway 270 



Genus 27. Junco Wagler 271 



Key to the Species and Subspecies of Junco 272 



135. Junco aikeni Ridgway 277 



136. Junco hyemalis hyemalis (Linnseus) 278 



137. Junco hyemalis carolinensia Brewster 282 



138. Junco oreganus oreganus (Townsend) 283 



139. Junco oreganus shufeldti (Coale) 285 



140. Junco oreganus thurberi (Anthony) 287 



141. Junco oreganus pinosus (Loomis) 288 



142. Junco montanus Ridgway 289 



