390 • BIRDS OF BRITISH GUIANA. 



edged with buff ; sides of the body, axillaries, and undei- wing- 

 coverts olive-brown, the greater series and base of quills below 

 white, the remaining portion o£ the quills pale brown ; lower ^ 

 aspect of tail greyish brown. 



Total length 159 mm., exposed culmen 13, wing 105, tail 63, 

 tarsus 30. 



The specimen described was collected in British Guiana, but the 

 exact locality is unknown. 



This species likewise breeds in North America and is only a 

 winter visitor to British G-uiana. 



Range in British Guiana. The only specimen in the McConnell 

 collection is without any exact locality: Roraima {Whitely). 



Extralimital Range. Colombia, Central America to North 

 America west of the Rocky Mountains. 



Habits. Unrecorded in British Guiana. 



Family VIEEONID^. 



This family is comprised of six genera and, when the fourth 

 volume of the ' Hand-list of Birds ' compiled by the late Dr. 

 Bowdler Sharpe was published in 1903, one hundred and eleven 

 species. At the time that Brabourne and Chubb published their 

 ' List of the Birds of South America ' in 1912, four genera and 

 fifty species were known to occur. All the genera and eleven of 

 the species are represented in British Guiana. 



Genus VIREO Vieill. 



Vireo Vieillot, Ois. de I'Am^r. Septentr. i. p. 83, 1807. Type V. nove- 

 horacensis (Gmel.). 



Fig. 149. — To show the slender and hooked bill. 



The specie's that constitute this genus may be generally 

 recognised b}"^ the green, or yellowish-green upper surface and the 



