612 MR. E. W. WHITE ON BIRDS [June 20, 
107. ANUMBIUS ACUTICAUDATUS, Less. 
3. Salto, B. Aires, Arg. Rep., Oct. 8, 1881. 
6. Flores, B. Aires, Arg. Rep., March 31, 1881. 
: of %, 5 Aug. 26, 1881. 
Tris dark red. 
I have shot this bird in June in Misiones, where it is not un- 
common. In Salto (B. Aires), however, it is very numerous about 
the plantations on the Estancias, where it builds in the forks of high 
trees, usually the Eucalyptus. The nest is constructed of large 
twigs, and is a fine structure for the size of the bird, 21 inches 
in height and 48 in circumference, in fact twice as great as 
that of Milvago chimango. The entrance to the nest, which is near 
the top, but is not right on it, and is about four or five inches in 
diameter and neatly rounded, leads downwards by a steeply inclined 
spiral passage to the bottom. The whole is thickly lined inside 
with hair, feathers, and wool, making a very soft, downy, and pretty 
nest, and one that is very difficult to pull to pieces, as the twigs 
are mostly thorny and strongly interlaced. 
There were five eggs in the one I took: their shape is elongated, 
considerably pointed at one end, and pure white, without spots: 
the only one to which it can be compared is that of Columbula pieut ; 
but it is more acutely pointed. 
Meas.: axis 24 millim., diam. 17 millim. 
108. PHACELLODOMUS FRONTALIs (Licht.). 
3. Punta Lara, B. Aires, Arg. Rep., Feb. 18, 1881. 
: ¥ 3 3 Feb. 21, 1881. 
Iris yellow. 
This bird keeps well out of sight amongst the thickest bushy 
undergrowth of the woods, and makes a very peculiar chattering 
sound that appears to attract other birds around it, especially the 
“ Chingolo”’ (Zonotrichia pileata), which I have noticed crowding 
round it in great numbers and in a very excited state—a fact that 
has forced itself on my observation many times and in several dif- 
ferent localities. 
109. PHACELLODOMUs SIBILATRIX, Scl. P. Z.S. 1879, p. 461. 
3. Monte Grande, Buenos Aires, Arg. Rep., Jan. 7, 1881. 
I observed two or three of these birds in a tala thicket at Monte 
Grande. 
110. Homorus unirurus (Lafr. et d’Orb.). 
3. Fuerte de Andalgala, Catamarca, Arg. Rep., Sept. 16, 1880. 
Iris light yellow. 
These birds are found usually in the open, where there are large 
algarroba-trees dotted about. j 
They are seen in pairs, and utter, with crest erect, and in concert, 
a succession of peculiar hoarse and varied notes. Their very bulky 
nests are constructed of large twigs, placed high up in lofty trees, 
