_Red-necked Swallow_, i. 36. _Red-stained Finch_, i. 57. _Red-tailed Earth-Creeper_, i. 171. _Red-throated Humming-bird_, ii. 8. ---- _Tyrant_, i. 136. _Red-topped Tyrant_, i. 134. _Red-winged Miner_, i. 166. _Red-winged Thorn-bird_, i. 194. _Reed-Finch, Long-tailed_, i. 49. _Reed-Tyrant_, i. 137. _Reed-Wren, Black-headed_, i. 13. _Rey de los Pajaros_, ii. 73. Rhamphastos toco, ii. 40. Rhea americana, ii. 216, 220. ----, _Common_, ii. 216. ---- darwini, ii. 219. ----, _Darwin's_, ii. 219. Rhinocrypta fusca, i. 207. ---- lanceolata, i. 206. Rhinogryphus aura, ii. 89. Rhyacophilus solitarius, ii. 188. Rhynchæa hilarii, ii. 182. ---- semicollaris, ii. 179, 182. Rhynchocyclus sulphurescens, i. 147. Rhynchops melanura, ii. 193. ---- nigra, ii. 193. Rhynchotus pentlandii, ii. 210. ---- punctulatus, ii. 210. ---- rufescens, ii. 50, 209, 214. _Ringed Kingfisher_, ii. 11. ---- _Spine-tailed Swift_, ii. 11. ---- _Warbling Finch_, i. 51. _Ring-necked Teal_, ii. 132. _Robin-like Wood-hewer_, i. 198. _Rock-Martin, Red-backed_, i. 30. _Rolland's Grebe_, ii. 204. _Roseate Spoonbill_, ii. 114. Rostrhamus hamatus, ii. 72. ---- leucopygus, ii. 72. ---- sociabilis, ii. 72. _Rosy-billed Duck_, ii. 137. _Rufous Cheese-bird_, i. 163. _Ruisiñor luscinia_, i. 172. _Rush-bird, Curved-bill_, i. 191. _Rush-loving Spine-tail_, i. 174. _Rusty Lake-Duck_, ii. 138. _Rusty-tailed Tyrant_, i. 156. _Saltator, Allied_, i. 41. ---- aurantiirostris, i. 42. ---- cærulescens, i. 42. ----, _Greyish_, i. 42. ---- similis, i. 41. ---- superciliaris, i. 41. ----, _Yellow-billed_, i. 42. Saltatricula multicolor, i. 61. _Sanderling_, ii. 186. _Sandpiper, Baird's_, ii. 184, 185. ----, _Bartram's_, ii. 189. ----, _Bonaparte's_, ii. 185. ----, _Buff-breasted_, ii. 190. ----, _Pectoral_, ii. 183, 184. ----, _Solitary_, ii. 188. _Sand-Plover, Azara's_, ii. 173. ----, _Patagonian_, ii. 172. _Sangre de Toro_, i. 152. ---- _Pura_, i. 152. _Sappho Humming-bird_, ii. 3. ---- sparganura, ii. 3. Sarcidiornis carunculata, ii. 128. ---- regia, ii. 128. Sarcorhamphus gryphus, ii. 90. _Saria, La_, ii. 161. Saurophagus sulphuratus, i. 147. Sayornis cineracea, i. 121. _Scarlet Tyrant_, i. 152. _Scarlet-headed Marsh-bird_, i. 101. _Schulz's Dipper_, i. 11. ---- _Woodpecker_, ii. 18. _Scissor-bill_, ii. 193. _Scissor-tail Tyrant_, i. 160. _Sclater's Curassow_, ii. 145. Sclerurus caudacutus, i. 174. ---- umbretta, i. 174. Scolopax frenata, ii. 181. ---- ---- magellanica, ii. 181. Scops brasilianus, ii. 51. _Screamer, Crested_, ii. 119. _Screaming Cow-bird_, i. 86. ---- _Finch_, i. 46. Scytalopus indigoticus, i. 205. ---- superciliaris, i. 205; ii. 223. ----, _White-eyebrowed_, i. 205. _Seed-Finch, Meadow_, i. 71.