cherrie: ornithology of the Orinoco region. 295 
Florisuga mellivora mellivora (Linnaeus). 
Trochilus mellivorus L., Syst. Nat. ed. 10. I. 1758. p. 121. 
Florisuga mellivora Berlepsch & Hartert, p. 82. 
Not observed at Bolivar and rare at Caicara where an adult male 
and an adult female were taken May 8th. Abundant on the upper 
river. 
Eye seal ; bill black ; feet dusky blackish. 
Agyrtria aebiventris (Lesson). Giin e..-iiN g. "m e. «=■**• i e p 
Oniismya albiventris Less.. Hist. Nat. Ois.-Mouches, 1829. pp. XXXIV, 
209. PL 76. 
Agyrtria albiventris Berlepsch & Hartert, p. 83. 
This is the most abundant species of Hummingbird found along 
the Orinoco up as far as the falls in the river. It is a bird of the 
open savanna regions. 
Eye dark seal brown ; bill dusky reddish with blackish tip ; feet 
dusky. 
I have found nests every month from May to November, and in 
localities as varied as the months — from a point out toward the ex- 
treme tip of a limb of a tree 20 metres up, to the forks of a slender 
shrub not more than 50 cm. above the ground. A nest before 
me is a neat, trim, little cup-shaped affair, built of the soft silky bits 
of native cotton adorned, on the outside, with scattered pieces of 
greenish gray lichens. It measures 4 cm. diameter by 2.8 cm. in 
depth outside, and 2.7 cm. diameter by about 1.8 cm. in depth inside. 
It was located about 1.6 m. from the ground near the tip of a large 
horizontal limb of a mango tree, at a point where a tiny twig 
branches from the main stem, the angles between the two forming 
the foundation for the nest. The egg (one of the set broken) is 
elliptical-oval in form and measures 13.2 x 8.8 mm. 
Agyrtria fimbriata (Gmelin). 
Trochilus fimbriatus Gmelin, Syst. Nat. I: 1788: p. 493 (Cayenne). 
Agyrtria fimbriata Stone, Proc. Ac. Nat. Sci. Phil. 1913 : p. 201 (Boca 
Uracoa, and Buelta Trieste, JRiver Manimo ; Cafio Corosal). 
Reported from the delta country by Stone. 
