CHKURin: ORMTHOUICY OF THE ORINOCO REOIDN. 259 
interstices are to be observed, and considerable force was required to 
mai<e an opening through the nest walls in order to remove the eggs. 
This nest, bristling with thorns, and built of strongly interwoven 
twigs, together with its peculiar shape, would seem to offer an ideal 
concealment and safe retreat for the eggs and the parent bird during 
incubation and later for the helpless young. The eggs are a pale 
greenish in color, ovate in form and measure 19.8x12.2; 20.2x15.5 
and 20.5 X 15.5 mm. 
.\ second nest taken on the same date was similar in general shape 
and in the materials employed in construction, but was some 40 cm. 
from the ground in the forks of a low tree. It was not, however, in 
any degree concealed by foliage ; and the entrance tube was almost 
at right angles to the body of the nest, its position doubtless being 
determined by the supporting limb, while the entrance tube in the 
example described above entered at an angle of about 45° to the body 
of the nest. This nest contained three eggs with incubation well 
advanced. The eggs are uniform in color with the ones above 
described but are more of a short ovate in form. They measure 
19x15.2: 19.3x15.5 and 18x15.5 mm. 
Synall.^xis cinn.\momea (Gmelin). 
Ccrthia cinnatnomca Gm., Syst. Nat. I. 1788. p. 480. 
Synallaxis cinnamomea Berlepsch & Hartert, p. 59. 
Found abundantly at Ciudad Bolivar and at various points on the 
San Feliz River near its junction with the Cuchivero River (and in 
1897 very common at .'\Itagracia, half way between Bolivar and Cai- 
cara). but rarely met with at Caicara. It inhabits the thickets and 
low bushes bordering streams and ponds. 
Eye in different examples, varying from a hazel brown to a pale hair 
brown ; bill, plumbeous abo\e. pale below ; feet, from a slate to a 
plumbeous grey. 
A nest containing two fresh eggs, together with the parent bird, 
was collected at Las Guacas on the San Feliz River May 31. 1907. 
The nest, similar in structure and similarly located to nests of 5". a. 
alhigiilaris, was about 60 cm. from the ground in the centre of a thornv 
bush. The eggs, a pale greenish or bluish green in color, are ovate 
in form and measure 19.25 x 14.35 "■"■'■'• '^"^1 19.25 x 14.5 mm, respect- 
ively. 
Beebe obtained specimens at Guanoco in the delta region. 
