Prince Max. gives the following note on the species : — " This graceful Swallow lives 

 on the banks of the rivers in the interior of Brazil, and I met with it on the Rio Grande 

 de Belmont e, where it was flying over the water and the large rocks on the shore, in 

 company with the Red-throated and White-winged Swallows. In the beginning of 

 September I found it mostly in pairs, and it seemed to prefer those places where the 

 water from the rocks caused some movement in the river and formed cascades and 

 whirlpools. Its flight is very rapid, like that of our Chimney-Swallow, which it also 

 much resembles in the form of the tail. In the brilliant noonday sun I have often seen 

 it sitting and sunning itself on the rocks." 



Natterer's localities for the species are the following : — Bordo do Matto da Para- 

 naiva : June. Porte do Principe : August. Bananeira : September. Salto Theotonio : 

 November. Bio Nesrro : December. Maribatanas : Januarv. 



According to Prof. Cabanis (I. c.) Schomburgk met with the species in British 

 Guiana ; but no other collector has procured specimens in that country. Can it be 

 possible that Atticora cyanoleuca, which is common near Boraima, was the species 

 intended ? 



Our description and figure are taken from one of Natterer's specimens from Porte 

 do Principe, in the Sclater Collection, and now in the British Museum. 



