LIST OF ILLUSTRATIONS. Ixxxvii 



Fig'. Pa^e 



]4G. Head of CiMopsis gularis — to shoTv the shape of the bill ... 377 



147. Head of Planesticus leutops — to illustrate the shape of the 



bill 378 



148. Head of Hylocichla fuseescens — to show the form of the bill . 387 



149. Head of Vireo calidris — to show the slender and hooked hill . 390 



150. Head of Faehysylvia griseiventris — to show the form of the 



bill 394 



151. Head of Vireolanius chloroga'sier — to show the markings on 



the sides of the face 399 



152. Head of CyclarKis qujanensis — to show the short, stout, and 



hooked bill ; '. 400 



153. Head of Compsothlypis' elegans — to show the pointed bill 402 



154. Head of Dendrwca astiva — to show the pointed hill 403 



155. Head of Seiurus novehoracensis — to show the characters on 



the side of the face 407 



156. Head of Geothlypis cBquinocfialis — to show the form of the 



bill and nostrils 409 



157. Head of Granatellus pelzelni — to illustrate the shape of the 



bill ..:..:...: ;;........: 410 



158. Head of Setopliaga ruticilla — ^to show the form of the bill and 



nostrils 411 



159. Head of Notioeorys ahariensis — to show the slender and 



pointed bill 419 



160. Head of Cyanocompsa rothscJiildi — to show the stout and 



pointed bill ..!... ..;..'.....;... 421 



161. Head of Oryzolorus crassirostris — to show the short, thick 



bill, and the position of the nostrils 423 



162. Head of Pyrrhulagra portoricensis — ^to show the form of the 



bill 426 



163. Head of Sporophila wMtelyana — to show the form of the bill . 427 



164. Head of MicropMla castaneiventris — to show the small bill 



with its^ straight culmen 436 



165. Head of Tiaris pJidsoptila — to show the form of the bill 441 



166. Head of Volatinia splendens — to show the comparatively long 



and pointed bill 443 



167. Head of Pitylus groasus — to illustrate the form of the bill and 



covered nostrils 444 



168. Head of Periporphyrus erythromelas — to show the form of 



the bill and the more or less exposed nostrils 446 



169. Head of GaryotJirausfes canadensis — to show the short bill 



and exposed nostrils 448 



170. Head of Saltator cayanus — to show the formation of the 



bill 450 



171. Head of Sicalis flaveola — ^to show the shape of the bill 453 



172. Head of Spiza americana — to show the form of the bill and 



the marks on the side of the face 458 



