----, _Yellow-billed Tit-_, i. 142. ----, _Yellow-browed_, i. 125. ----, _Yetapa_, i. 124. _Upland Goose, Barred_, ii. 123. Upucerthia dumetoria, i. 170. ---- luscinia, i. 171. ---- ruficauda, i. 171. _Urraca_, ii. 32. ---- _Jay_, i. 110. Urubitinga meridionalis, ii. 63. ---- unicincta, ii. 63. _Vanduria aplomado_, ii. 112. ---- _barroso_, ii. 112. ---- _de Invierno_, ii. 111. ---- _de las lagunas_, ii. 112. Vanellus cayennensis, ii. 165, 195, 200. ---- modestus, ii. 171. _Varied Woodpecker_, ii. 19. _Variegated Heron_, ii. 101. _Veiled Wood-singer_, i. 20. _Viguá_, ii. 92. _Vinaceous Amazon_, ii. 46. _Violet-eared Humming-bird_, ii. 3. Vireo chivi, i. 22. ---- olivaceus, i. 22, 204. Vireosylvia chivi, i. 22. _Virginian Owl_, ii. 50. _Viudita_, i. 118. _Vulture, Black_, ii. 89. ---- _Turkey_, ii. 89. _Wagtail Tyrant_, i. 139. _Warbling Earth-Creeper_, i. 171. _Warbling Finch, Black-and-Chestnut_, i. 49. ----, _Pretty_, i. 51. ----, _Red-browed_, i. 50. ----, _Red-flanked_, i. 51. ----, _Ringed_, i. 51. ----, _White-and-Grey_, i. 52. ----, _White's_, i. 50. _Warlike Tyrant_, i. 151. _Waterhen, American_, ii. 156. ----, _Little_, ii. 156. _Wedge-billed Wood-hewer_, i. 199. _Wedge-tailed Ground Finch_, i. 63. _Whimbrel, Esquimo_, ii. 192. _Whip-poor-Will_, ii. 13. _Whispering Ibis_, ii. 113. _Whistling Duck_, ii. 127. ---- _Heron_, ii. 100. ---- _Thorn-bird_, i. 192. _White Egret_, ii. 98. _White-and-Grey Warbling Finch_, i. 52. _White-banded Goatsucker_, ii. 14. ---- _Mocking-bird_, i. 8. _White-bellied Tyrant_, i. 121. ---- _Woodpecker_, ii. 23. _White-breasted Humming-bird_, ii. 7. _White-browed Tyrant_, i. 121. _White-capped Tanager_, i. 38. _White-crested Tyrant_, i. 145. _White-eyebrowed Scytalopus_, i. 205. _White-faced Ibis_, ii. 109. ---- _Tree-Duck_, ii. 128. _White-headed Guan_, ii. 146. ---- _Tyrant_, i. 122. _White-necked Tapacola_, i. 207. _White-rumped Swallow_, i. 30. _White-sided Humming-bird_, ii. 1. _White-tailed Buzzard_, ii. 61. ---- _Kite_, ii. 71. ---- _Tyrant_, i. 112. _White-throated Cachalote_, i. 197. ---- _Humming-bird_, ii. 7. ---- _Spine-tail_, i. 179. ---- _Wood-hewer_, i. 200. _White-winged Bécard_, i. 162. ---- _Cinclodes_, i. 173. ---- _Lake-Duck_, ii. 138. _White's Ground-Finch_, i. 64. ---- _Spine-tail_, i. 181. ---- _Warbling Finch_, i. 50. _Widow Tyrant_, i. 118. _Wigeon, Chiloe_, ii. 135. _Wilson's Phalarope_, ii. 180, 181. _Wing-banded Tyrant_, i. 155. _Winter Plover_, ii. 171, 172. _Wood-bird, Brown-headed_, i. 23. _Wood-hewer, Bridge's_, i. 199. ----, _Chestnut_, i. 201. ----, _Flat-billed_, i. 199. ----, _Narrow-billed_, i. 201. ----, _Robin-like_, i. 198. ----, _Wedge-billed_, i. 199. ----, _White-throated_, i. 200.