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 Fringillide (Finches) 
alone. 
Part II, issued October 16, 1902, included the Tanagride (Tan- 
agers), Icteride (Troupials), Coerebide (Honey Creepers), and 
Mniotiltide (Wood Warblers). 
Part III, issued December 31, 1904, included the Motacillide 
(Wagtails and Pipits), Hirundinide (Swallows), Ampelide (Wax- 
wings), Ptilogonatide (Silky Flycatchers), Dulide (Palm Chats), 
Vireonide (Vireos), Laniide (Shrikes), Corvide (Crows and Jays), 
Paridx (Titmice), Sittide (Nuthatches), Certhiide (Creepers), Trog- 
lodytide (Wrens), Cinclide (Dippers), Chameide (Wren-Tits), and 
Sylviide (Warblers). 
Part IV, issued July 1, 1907, contained the remaining groups of 
Oscines, namely, the Turdide (Thrushes), Zeledoniide (Wren- 
Thrushes), Mimide (Mockingbirds), Sturnide (Starlings), Ploceide 
(Weaverbirds), and Alaudide (Larks), together with the Haploo- 
phone or Oligomyodian Mesomyodi, comprising Oxyruncide (Sharp- 
bills), Tyrannide (Tyrant Flycatchers), Pipride (Manakins), and 
Cotingide (Chatterers). 
Part V, issued November 29, 1911, includes the Tracheophone 
Mesomyodi, represented hy the Pteroptochide (Tapaculos), Formi- 
cariide (Antbirds), Furnariide (Ovenbirds), and Dendrocolaptide 
(Woodhewers); the Macrochires, containing the Trochilide (Hum- 
ming Birds) and Micropodide (Swifts), and the Heterodactyle, repre- 
sented only by the Trogonide (Trogons). 
Part VI, issued April-8, 1914, contains the Picariz, comprising the 
Families Picidee (Woodpeckers), Capitonide (Barbets), Ramphasti- 
de (Toucans), Bucconide (Puff Birds), and Galbulide (Jacamars); 
the Anisodactyle, with Families Alcedinide (Kingfishers), Todide 
(Todies), and Momotide (Motmots); the Nycticoracie, with Families 
Caprimulgide (Goatsuckers) and Nyctibiide (Potoos), and the 
Striges, consisting of families Tytonide (Barn Owls) and Bubonide 
(Eared Owls). 
Part VII, issued May 5, 1916, contains the Coccygiformes (Cuckoo- 
like Birds), Psittaciformes (Parrots), and Columbiformes (Pigeons). 
III 
