_Cheese-bird, Rufous_, i. 163. _Chestnut Cuckoo_, ii. 36. ---- _Wood-hewer_, i. 201. _Chestnut-shouldered Hang-nest_, i. 107. _Chicli_, i. 179. _Chilian Eagle_, ii. 64. _Chiloe Wigeon_, ii. 135. _Chimango_, ii. 74. ---- _Carrion-Hawk_, ii. 74. _Chingolo_, i. 58. ---- _grande_, i. 164. ---- _Song-Sparrow_, i. 58. _Chin-spotted Tyrant_, i. 133. _Chipiu pardo y canela_, i. 45. _Chiriví_, ii. 136. Chiroxiphia caudata, i. 161. _Chisel-bill_, i. 101. _Chivi Greenlet_, i. 22. Chloephaga dispar, ii. 123. ---- magellanica, ii. 123. ---- melanoptera, ii. 122. ---- poliocephala, ii. 124. Chloroceryle amazona, ii. 27. ---- americana, ii. 27. Chloronerpes affinis, ii. 20. ---- aurulentus, ii. 21. ---- frontalis, ii. 20. ---- maculifrons, ii. 20. ---- rubiginosus, ii. 21. ---- tucumanus, ii. 21, 223. ---- (Campias) frontalis, ii. 223. Chlorostilbon aureiventris, ii. 9. ---- phaethon, ii. 9, 229. ---- splendidus, ii. 1, 6, 9. _Chochi_, ii. 35. _Chocolate Dove_, ii. 144. ---- _Tyrant_, i. 112. _Chocoyno_, i. 4. _Choliba_, ii. 51. ---- _Owl_, ii. 51. _Chopi_, i. 108. ---- _Boat-tail_, i. 108. Chordeiles virginianus, ii. 13. _Chorlito de invierno_, ii. 172. _Chorlo_, i. 113; ii. 170. ---- _canela_, ii. 174. ---- _solo_, ii. 189. Chrysomitris atrata, i. 65. ---- barbata, i. 64. ---- icterica, i. 64. ---- magellanica, i. 64. Chrysomus frontalis, i. 99. Chrysoptilus chlorozostus, ii. 21. ---- cristatus, ii. 21, 228. ---- melanochlorus, ii. 21. Chrysotis æstiva, ii. 47. ---- amazonica, ii. 47. ---- vinacea, ii. 46. Chrysuronia chrysura, ii. 8. ---- ruficollis, ii. 8. _Chueké_, ii. 216. Chunga burmeisteri, ii. 162. _Chuñia_, ii. 162. _Churinche_, i. 152. Ciconia maguari, ii. 99, 106. Cinclodes bifasciatus, i. 173. ----, _Brown_, i. 172. ---- fuscus, i. 172. ---- vulgaris, i. 172. ----, _White-winged_, i. 173. Cinclus schulzi, i. 11, ii. 223. _Cinereous Cuckoo_, ii. 38. ---- _Harrier_, ii. 57. ---- _Plover_, ii. 173. ---- _Tinamou_, ii. 210. ---- _Tyrant_, i. 128. _Cinnamomeous Kestrel_, ii. 69. Circus cinereus, ii. 57. ---- macropterus, ii. 58. ---- maculosus, ii. 58. ---- megaspilus, ii. 58. Cistothorus fasciolatus, i. 16. ---- platensis, i. 15. Cnipolegus anthracinus, i. 126, 127. ---- aterrimus, i. 126. ---- cabanisi, i. 128; ii. 229. ---- cinereus, i. 128; ii. 229. ---- cyanirostris, i. 127. ---- hudsoni, i. 126, 131. Coccoborus glaucocæruleus, i. 44. Coccyzus americanus, ii. 37. ---- cinereus, ii. 38. ---- melanocoryphus, i. 81; ii. 38. ---- pumilus, ii. 39. ---- seniculus, ii. 38. _Cock, Little_, i. 206. _Cock-tailed Tyrant_, i. 122. _Cocoi Heron_, ii. 93. _Cola estraña_, i. 123. Colaptes agricola, ii. 22, 24. ---- australis, ii. 24.