CHERRIE : ORNITHOLOGY OF THE ORINOCO REGION. I49 



Pheucopedius griseipEctus caurensis (Berlepsch & Hartert), 



Thryothorus griscipectiis caurensis Berlepsch & Hartert, Novit. Zool. 



IX. 1902. p. 7. 



Described from specimens secured on the Caura River by Mr. 

 Eugene Andre. It has been recorded from La Union, La Pricion and 

 Nicare (type locality). 



Troglodytes musculus clarus Berlepsch & Hartert. 



Troglodytes musculus clarus Berlepsch & Hartert, Novit. Zool. IX. 



1902, p. 8. {Type, Bartica Grove, British Guiana.) 



Common throughout the Orinoco region at least as far as the 

 Falls of Atures. 



Specimens were collected at Ciudad Bolivar, Altagracia, Caicara 

 and Ouiribana de Caicara. 



In life the eye is seal brown ; bill above blackish, below pale grey ; 

 feet dusky slate grey. 



A set of four slightly incubated eggs, together with the parent 

 birds, were taken at Caicara, July 10, 1906 (15,078 Cherrie Coll.). 

 The eggs are short ovate in form and measure 17.5x14; 16.9x13.5; 

 17x13.75 and 17.5x13.6 mm. They are thickly dotted over the 

 entire surface with brown varying in shade on the different examples 

 from vinaceous to chestnut. In two of the eggs the specks and dots 

 are more thickly clustered about the larger end, forming a cap. The 

 ground color is a pale bufify pink. The nest was located in a natural 

 cavity in the trunk of a Chaparo oak about 2.1 m. from the ground. 

 Very little nesting material had been taken into the nest cavity, and 

 consisted of a few black hair-like vegetable fibres on top of which was 

 a lining of the wing and tail feathers of small birds so arranged that 

 the quills stuck outward and upward around the edge of the nest, and 

 the soft tips rested on the bottom. Here and there between the 

 feathers were bits of the cast skin of some small lizard. 



The parent birds were shy and wary. The female when flushed 

 would fly directly to a thicket some twenty-five yards distant where 

 she would remain quietly in hiding until she believed all danger to 

 have passed. . 



SYLVIIDAE— THE KINGLETS AND GNATCATCHERS. 

 Only a single species pertaining to this family was observed on 

 the Orinoco. 



