CHERRIE: ornithology of the ORINOCO REGION. 279 
between horizontal forks of a limb of a tree known as Caila-fistola ; it was 
about 1.52 m. from the ground and just above a thicket of thorny vines 
that would have effectually protected it from most predatory animals. 
In the materials employed, and in shape it is similar to the nest described 
above and just as loosely and openly woven. The greatest diameter of 
the nest cavity is just below the edge which is contracted on the two 
sides by the branches of the fork and at the outer edge, between the 
forks, by the drawing in of the nest wall, a condition which would have 
prevented the eggs being thrown out had the branch swayed about a 
great deal. 
Of the two young taken with this nest, a male and a female, the 
latter was considerably the larger and must have been a couple of days 
the older. Ordinarily where there is any decided difference in the 
plumages of adults, the young in juvenal plumage will bear a greater 
resemblance to the female than to the male. In the specimens before 
me the pattern of coloration is that of the male in both the male and 
the female. The general color above is tawny ochraceous, inclined to 
russet on the crown, rather broadly barred with blackish or dusky black; 
in short, they differ from the adult male chiefly in the lack of a length- 
ened crest and in the replacing of the white by ochraceous. Below, they 
are a pale ochraceous buft', that fades into almost pure white on the 
abdomen, narrowly barred with dusky on the breast and sides, dark- 
est on the upper breast, faintly showing on the flanks and entirely absent 
on the abdomen. 
PVGIPTIL.\ STELL.-\RIS (Spixj. 
Thamnophilus stellaris Spix, Av. Bras. II. 1825. p. 27. PI. 36. fig. 2. 
Pygiptila macidipennis Berlepsch & Hartert, p. 71 ( Munduapo, Neri- 
cagua, Orinoco River), in part. 
Pygiptila stellaris Hellmayr. Novit. Zool. XII. 1906. p. 367. 
Noted only on the upper river, alx)ve the second falls, where it was 
not uncommon at Munduapo and Nericagua. Berlepsch and Hartert 
also record it from La Union and La Pricion on the Caura River. 
There are two specimens in the American Museum collection col- 
lected bv Klages at La Union on the Caura River, Venezuela, that 
I am unable to identify with certainty. They may or may not belong to 
the same species ; I am, however, strongly of the opinion that they repre- 
sent distinct forms. They have both been marked as males by the col- 
lector, in one case, however, with a cjuestion. Below I give a brief de- 
scription of each of the specimens. 
