cherrie: ornithology of the Orinoco region. 153 
At La Casabel and Las Guacas in 1907 this species was found 
common in the tall grasses bordering the marshes. 
Oporornis agilis (Wilson). 
Sylvia agilis Wilson, Am. Orn., 1812, p. 64 (Connecticut). 
There is in the American Museum collection a specimen collected 
by Miller and Iglseder at Maipures. I believe this to be the first record 
of the species in the Orinoco valley. 
B.aiSiLEUTERU,s MESOLEucus Sclater. 
Basilciitcnis incsoleiicus Scl., P. Z. S. 1865. p. 286; Berlepsch & Hartert, 
p. II. 
Klages sent examples of this species to the Tring Museum that 
he obtained at Suapure on the Caura River. 
Basileuteri's auricapillus olivascens Chapman. 
Basilcutcrus vcrmivonis olivascens Chapm., Auk. X. 1893, P- 343 
(Trinidad). 
This is an abundant species in Trinidad and Mr. C. William 
Beebe secured a good example, in April, at Guanoco in the Orinoco 
Delta region which agrees exactly with the Brooklyn Museum series 
from Trinidad. 
Setophaga ruticilla (Linnaeus). 
MotaciUa Rut ic ilia Linn. Syst. Nat. ed. 10. X. 1758. p. 186. 
Setophaga ruticilla Berlepsch & Hartert, p. 11. 
Not uncommon about Ouiribana de Caicara during April, 1898, but 
observed only during the first week in May on the two recent expedi- 
tions. 
Dendroica aestiva aEstiva (Gmelin). 
MotaciUa aestiva Gm. Syst. Nat. L 1788. p. 996. 
Dendroica aestiva Berlepsch & Hartert, p. 9. 
The Yellow Warbler was noted from November 3rd to May 3rd 
and was not uncommon. 
Dendroica striata (Forster). 
Muscicapa striata Forster, Phil. Trans. LXXIL 1772. p. 406. 
Dendroica striata Berlepsch & Hartert, p. 9. 
