CHERRIE: ORNITHOLOGY OF THE ORINOCO REGION. 229 



On my first expedition to the Orinoco region a single specimen 

 of this species was collected at Quiribana de Caicara^ but was not 

 included in Berlepsch and Hartert's paper. In 1905 an adult male and 

 an adult female were taken at Ciudad Bolivar, April 3rd. 



Elaenia cristata Pelzeln. 

 Elainea cristata Pelz. Orn. Bras. 1868. pp. 107, 177; Berlepsch & 



Hartert, p. 43. 



This and the preceding species occur together throughout the 

 middle stretches of the Orinoco. Specimens were collected at Ciudad 

 Bolivar, Agua Salada de Ciudad Bolivar, Caicara and Quiribana de Cai- 

 cara. A nest and set of eggs were taken at Quiribana de Caicara 

 April i6th, 1898, and described in the Berlepsch and Hartert paper. 



Elaenia parvirostris Pelzeln. 

 Elainea parvirostris Pelz., Orn. Bras. 1868. pp. 107, 178. 

 Elainea alhiceps parvirostris Berlepsch & Hartert, p. 44. (Caicara, 



Quiribana de Caicara.) 



Common, noted at various points along the river from Caicara 

 down as far as Las Barrancas in the delta region. Only two speci- 

 mens of this species w^re taken on my first expedition to the 

 Orinoco. One of the two collected at that time, together with a 

 nest and set of eggs, was taken on the 2nd of April. Both the nest 

 and the eggs resemble those of other species of Blaenia that have 

 come under my observation, except that the nest-lining used by E. 

 cristata and the present species is composed of the soft, silky hair- 

 like fibres covering the seeds from the silk cotton tree, whereas 

 feathers are usually employed. 



Specimens from Caicara and from Las Barrancas have been com- 

 pared with the type of Elaenia albiventris^ in the collection of the 

 American Museum and found to be identical. 



Myiopagis viridicata viridicata (Vieillot). 

 Sylvia viridicata VieiWot, Nouv. Diet. XL 1817. p. 171 (Type, Paraguay). 

 Elainea viridicata Berlepsch & Hartert, p. 44. (Caicara and Quiribana 



de Caicara, Orinoco River, Venezuela.) 

 Elaenia viridicata delicata Berlepsch"^ Proc. IVth Internat. Orn. Cong.. 



1907, p. 430 (Caicara and Quiribana de Caicara, Orinoco River). 



'Berlepsch, Proc. IVth Intemat. Orn. Cong. 1905. p. 402. 



^Elaenia albiventris Chapman, Auk. XIV. 1897. p. 368 {Type, Cumanacoa, Venezuela, W. H. Phelps 

 Collection). 



^Count Berlepsch writes me under date of Dec. sth, 1908, that his E. v delicata is true viridicata! 



