54 



Mr. Charles Chubb on the 



made by Mr. Foster has been received in Europe, and therefore 

 I hope that my present essay will be of some service to 

 ornithology. 



Text-fig. 1. 



Map of part of Paraguay, showing the position of Sapucay. 



The following are some of the principal memoirs which 

 deal with Paraguayan ornithology: — 



Azara, F. de. — Apuntamientos para la historia natural de los Paxaroa 



del Paraguay y Rio de La Plata. Madrid, 1802-1805. 

 Yieillot, L. P. — Xouveau Dictionnaire d'Histoire Naturelle. Paris, 



1816-1819. 

 Hartlalb, Carl J. G. — Systematischer Index zu Don Felix de 



Azara 's Apuntamientos para la historia natural de los paxaros 



del Paraguay y Rio de la Plata. Bremen, 1847. 

 Catalogue of the Birds in the British Museum. London, 1874-1808. 

 Berlepsch, Hans, Graf von. — Systematisches Verzeichniss der von 



Herrn Ricardo Rohde in Paraguay gesammelten Vogel. Journal 



fur Ornithologie, 1887, pp. 1-37, 113-134. 

 Bertoni, A. W. — Aves Nuevas del Paraguay. Asuncion, 1901, pp. 1- 



216. 

 Oberholser, H. C. — List of Birds collected by William T. Foster in 



Paraguay. Proc. U.S. Nat. Mus. xxv. pp. 127-147 (1902). 

 Ihebing, H. von. — As aves do Paraguay ein comparacao com as de Sao 



Paulo. Revista do Museu Paulista, vi. pp. 310-344 (1904). 



