PREFACE. 



The Families of birds included in the present and preceding volumes 

 of this work are as follows: 



Part I, issued October 24, 1901, included the Fringillida (Finches) 

 alone. 



Part II, issued October 16, 1902, included the Tanagridae (Tan- 

 agers), Icteridas (Troupials), Coerebidse (Honey Creepers), and 

 Mniotiltidse (Wood Warblers). 



Part III, issued December -31, 1904, included the MotaciUidae 

 (Wagtails and Pipits), Hirundinidae (Swallows), Ampelidae (Wax- 

 wings), Ptilogonatidse (Silky Flycatchers), Dulidae (Palm Chats), 

 Vireonidae (Vireos), LaniidoB (Shrikes), Corvidae (Crows and Jays), 

 Paridae (Titmice), Sittidae (Nuthatches), Certhiidae (Creepers), Trog- 

 lodytidffi (Wrens), Cinclidae (Dippers), Chamaeidae (Wren-Tits), and 

 Sylviidae (Warblers). 



Part IV, issued July 1, 1907, contained the remaining groups of 

 Oscines, namely, the Turdidae (Thrushes), Zeledoniidae (Wren- 

 Thrushes), Mimidre (Mockingbirds), Sturnidae (Starlings), Ploceidae 

 (Weaverbirds), and xUaudidae (Larks), together with the Haploo- 

 phonc or Oligomyodian Mesomyodi, comprising Oxyruncidje (Sharp- 

 l)ills), Tyrannidie (Tyrant Flycatchers), Piprida? (Manakins), and 

 Cotingidae (Chatterers). 



Part V, issued November 29, 1911, mcludes the Tracheophone 

 Mesomyodi, represented by the Pteroptochidae (Tapaculos), Lormi- 

 cariidae (An thirds), Furnariidac (Ovenbirds), and Dendrocolaptidae 

 (Woodhewers) ; the Macrochires, containing the Trochilidas (Hum- 

 ming Birds) and Micropodidae (Swifts), and the Heterodactjiae, repre- 

 sented only by the Tn)gonidae (Trogons). 



Part VI, issued April 8, 1914, contains the Picaria?, comprising the 

 Families Picidae (Woodpeckers), Capitonida^ (Barbots), Ramphasti- 

 dae (Toucans), Bucconidw (Puff Birds), and Galbulidje (Jacamars); 

 the Anisodactylae, with Families Alcedinidie (Kingfishers), Todidas 

 (Todies), and Momotidae (Motmots); the Nycticoraciae, with Families 

 Caprimulgidaj (Goatsuckers) and NyctibiidaB (Potoos), and the 

 Striges, consisting of families Tytonidae (Barn Owls) and Bubonidae 

 (Eared Owls). 



Part VII, issued May 5, 1916, contains the Coccygiformes (Cuckoo- 

 like Birds), Psittaciformes (Parrots), and Columbiformes (Pigeons). 



