208 



THE CHICAGO ACADEMY OF SCIENCES. 



Brachyotus palustris, 102. 

 Branta, 50. ' 

 Branta bernicia, 51. 



canadensis, 50. 



canadensis minima, 22. 



hutchinsii, 51. 



minima, 51. 

 Bucephala albeola, 44. 



clangula, 43. 



islandica, 44. 

 Bubo, 106. 

 Bubo virgiuianus, 106. 



virginianus arctieus, 106. 

 Bubonidae, 102. 

 Buteo, 94. 

 Buteo borealis, 94. 



borealis calurus, 95. 



borealis harlani, 95. 



borealis krideril, 94. 



latissimus, 96. 



lineatus, 95. 



platypterus, 96. 



swainsoni, 96. 

 Butorides, 55. 

 Butorides virescens, 55. 



Calcarius, 133. 



Calcarius lapponicus, 16, 133, 134. 



pictus, 16, 17, 184. 

 Calidris, 71. 



Calidris arenaria, 15, 71. 

 Cardinalis, 145. 

 Cardinalis cardinalis, 145. 



virginianus, 145. 

 Carpodacus, 128. 

 Carpodacus purpureas, 128. 

 CaprimuJgidae, 113. 

 Cathartes, 90. 

 Cathartes aura, 90. 

 Cathartidse, 90. 

 Certhia, 186. 



Certhia familiaris americana, 186. 

 Certhiidffi, 186. 

 Centurus, 112. 

 Centurus carolinus, 112. 

 Ceophloeus, 111. 



Ceophloeus pileatus abieticola, 111. 

 Ceryle, 109. 

 Ceryle alcyon, 109. 

 Chaetura, 114. 

 Chsetura pelagica, 114. 

 Charadriidse, 78. 

 Charadrius, 79. 

 Charadrius dominicus, 76, 79. 



fulvus var. virginicus, 79. 



marmoratus, 79. 



pluvialis, 79. 

 Charitonetta, 44. 

 . Charitonetta albeola, 44. 

 Chaulelasmus, 37. 

 Chaulelasmus streperus, 37. 

 Chen, 48. 

 Chen cserulescens, 49. 



hyperborea, 48. 



hyperbor'ea nivalis, 49. 

 Chonde.stes, 138. 

 Chondestes grammacus, 15, 138. 

 Chordeiles, 113. 

 Chordeiles popetue, 113, 114. 



virginianus, 113. 



virginianus henryi, 113, 114. 



Circus, 92. 



Circus cyaneus, 92. 



hudsonius, 92. 

 Cistothorus, 185. 

 Cistothorus stellaris, 185. 

 Clangula, 43. 

 Clangula albeola, 44. 



clangula americana, 43. 



hyemalis, 45. 



islandica, 44. 

 Coccyges, 108. 

 Coccyzus, 108. 

 Coccyzus americanus, 108. 



erythrophthalmus, 108. 

 Colaptes, 112. 



Colaptes auratus .luteus, 112. 

 Colinus, 82. 



Golinus virginianus, 82. 

 Columbse, 86. 

 Columbidaj, 86. 

 Colymbus, 25. 

 Colymbus auritus, 25. 



nigricollis californicus, 26. 



holboellii, 25. 



septentrionalis, 27. 



toquatus, 27. 

 Compsothlypis, 159. 

 Compsothlypis americana ramalinse, 



159 

 Contopus, 117. 

 Contopus virens, 117. 

 Conurus, 108. 

 Conurus carolinensis, 108. 

 Corvida;, 120. 

 Crovus, 120. 

 Oorvus americanus, 122. 



brachyrhynchos, 121. 



corax, 120. 



corax var. carnivorus, 121. 



corax principalis, 120. 



corax sinuatus, 121. 



corone, 121. 



pica, 120. 

 Coturniculus, 135. 

 Coturniculus savannarum passerinus, 



15, 135. 

 Crucirostra minor, 129. 

 Crymophilus, 62. 

 Crymophilus fulicarius, 62. 

 Cryptoglaux, 104. 

 Cryptoglaux acadica, 105. 



tengmalmi richardsoni, 104. 

 Cuculidae, 108. 

 Cupidonia americana, -84. 

 Cyanocitta, 120. 

 Cyanocitta cristata, 120. 

 Cygnus americanus, 52. 



bewicki, 52. 

 Cyanospiza, 146. 

 Cyanospiza cyftnea, 146. 



Dafila, 40. 

 Dafila acuta, 40. 

 Dendroica, 160. 

 Dendroica aestiva, 160. 



blackburnise, 164. 



caerulea, 162. 



caerulescens, 16, 161. 



castanea, 163. 



coronata, 161. 



discolor, 169. 



