_Maguari Stork_, ii. 106. _Manduria_, ii. 112. _Mandurria ó curucáu_, ii. 111. _Manea-cola_, i. 166. _Manikin, Long-tailed_, i. 161. _Many-coloured Ground-Finch_, i. 61. ---- _Tyrant_, i. 142. _Marbled Tiger-Bittern_, ii. 104. Mareca chiloensis, ii. 135. ---- sibilatrix, ii. 135. _Marked Crake_, ii. 155. _Marsh-bird, Red-breasted_, i. 100. ----, _Red-headed_, i. 99. ----, _Scarlet-headed_, i. 101. ----, _Yellow-breasted_, i. 102. ----, _Yellow-headed_, i. 98. ----, _Yellow-shouldered_, i. 97. _Marsh-Finch_, i. 45. _Marsh-Hawk, Sociable_, ii. 72. _Marsh-Starling, De Filippi's_, i. 105. ----, _Patagonian_, i. 104. _Marsh-Wren, Platan_, i. 15. _Martin, Brown_, i. 35. ----, _Domestic_, i. 25. ----, _Purple_, i. 24. ----, _Red-backed Rock-_, i. 30. ----, _Tree-_, i. 26. _Martineta Tinamou_, ii. 214. _Maximilian's Parrot, Prince_, ii. 47. _Max's Finch, Prince_, i. 44. _Meadow Seed-Finch_, i. 71. Megaceryle torquata, ii. 26. _Melancholy Tyrant_, i. 158. _Merlo_, i. 4. Merula fuscatra, i. 4. Metopiana peposaca, ii. 137. Metriopelia aymara, ii. 142, 228. ---- melanoptera, ii. 142. Milvago chimango, i. 81; ii. 57, 74, 82. ---- pezoporus, ii. 74. Milvulus tyrannus, i. 160; ii. 77. ---- violentus, i. 75. Mimus calandria, i. 5, 9. ---- modulator, i. 5, 7. ---- patagonicus, i. 7, 79. ---- thenca, i. 1, 7. ---- triurus, i. 2, 8. _Miner, Common_, i. 165. ----, _Red-winged_, i. 166. _Minera_, i. 33, 166. _Minto Seed-Finch_, i. 69. _Mitu, El_, ii. 145. _Mocking-bird, Calandria_, i. 5. ----, _Patagonian_, i. 7. ----, _White-banded_, i. 8. _Modest Spine-tail_, i. 183. _Molina's Parrot_, ii. 43. Molothrus badius, i. 84, 86, 87, 88, 91, 92, 93, 95, 104. ---- bonariensis, i. 18, 72, 74, 75, 78, 79, 81, 82, 83, 84, 85, 86, 88, 91, 92, 93, 154. ---- pecoris, i. 72, 74, 86. ---- rufoaxillaris, i. 86, 91, 92, 93, 95, 104. ---- sericeus, i. 72. _Molú Chueké_, ii. 219. Molybdophanes cærulescens, ii. 112. _Mourning Finch_, i. 54. _Mouse-brown Tyrant_, i. 119. Muscicapara viridicata, i. 146. Muscisaxicola macloviana, i. 133. ---- maculirostris, i. 134. ---- mentalis, i. 133, 134. ---- rufivertex, i. 134. _Muscovy Duck_, ii. 129. Mycteria americana, ii. 106. Myiarchus atriceps, i. 157; ii. 223. ---- erythrocercus, i. 156. ---- fasciatus, i. 126; ii. 227. ---- ferocior, i. 156; ii. 223. ---- ferox, i. 156, 157. ---- tyrannulus, i. 156, 157. Myiobius nævius, i. 151. Myiodynastes solitarius, i. 150. Myiotheretes rufiventris, i. 82, 112, 114, 117; ii. 76. _Ñacundá_, ii. 12. ---- _Goatsucker_, ii. 12. _Ñacurutú_, ii. 51. _Nandú_, ii. 216. _Narrow-billed Wood-hewer_, i. 201. _Narrow-tailed Tyrant_, i. 139. Nasica gracilirostris, i. 199. _Night-Heron, Dark_, ii. 105. Noctua cunicularia, ii. 52.