2 



Adult female. Similar to the male in colour. Total length 4'8 inches, culmen 0'35j wing 4, tail l"85j 

 tarsus 0'4. 



Obs. There does not seem to he much variation in plumage in this species beyond that the shade of 

 colour on the back varies between green and blue, and the shaft-lines on the breast are more 

 distinct in some than in others ; they apparently become obscured in winter, as is the case with 

 other Swallows of this group. Sometimes the streaks on the rump and upper tail-coverts are 

 very broad. 



A young bird shot by Mr. Wyatt in the Magdalena Valley is smoky brown, glossed with dull green on 

 the back and wing-coverts ; quills and tail brown ; the white edgings to the greater coverts are 

 almost obsolete, but the white on the inner secondaries is strongly pronounced. 



Hab. South America throughout Brazil and Amazonia to Colombia, Ecuador, and Guiana. 



This very distinct species of Tachycineta has a wide distribution in South America. It 

 inhabits the whole of Guiana, having been originally described from Cayenne, while 

 specimens from Surinam are in the U.S. National Museum. Mr. Henry Whitely has sent 

 it from British Guiana, viz. from Bartica Grove (Sept.) and Camacusa (June). 



We have not found any instance recorded of its occurrence in Venezuela, but 

 Mr. Wyatt procured it in Colombia, where it was confined to the low country. He 

 noticed it on the Magdalena River and the Lake of Paturia. In Ecuador Buckley 

 obtained specimens on the Copataza River. 



Mr. Edward Bartlett met with this species in Eastern Peru, and it was found by 

 him on the Upper and Lower Ucayali and at Santa Cruz. He found it breeding in 

 July and August. Stolzmann met with it at Yurimaguas in February, and Mr. Haux- 

 well has procured it at Pebas in the same month. 



The White-winged Swallow also appears to inhabit Bolivia, as d'Orbigny procured 

 it in the province of Moxos, and a Bolivian specimen is in the U.S. National Museum. 



In Brazil Prince Maximilian states that he met with it both on the coast and in the 

 interior. It was found plentifully to the southwards, on the Parahyba, on the Mucuri, 

 and it was very common at Belmonte, Illieos, &c. Natterer met with it at Pirahy in 

 November, and in the Ypanema district in January, Eebruary, April, May, and November. 

 Wucherer procured specimens near Bahia, and from Pernambuco Mr. Eorbes writes : — 

 "This Swallow I found very common in Recife, where it might be seen flying about 

 in numbers in some of the sti*eets, as well as over the rivers which separate the various 

 parts of the town. I also observed it at Parahyba, but in the interior it seems to 

 disappear." 



Mr. Wallace and Mr. Layard both met with it near Para. 



Prince Maximilian of Neuwied has given the following note on the habits of the 

 species as observed by him in Brazil : — " It flies low over the surface of the water, 

 resting on the branches and small twigs of the stumps, which are uprooted by the 

 course of the stream, and which are stuck fast in the sand in every direction. The cry 



