602 
Mr. Charles Chubb on the 
The tail, in this series, is uniform black with a trace of 
white at the extreme base. 
[These birds appear during the month of March and 
by the end of April have left us. I have always thought 
this very strange, and have watched carefully in the hopes 
of finding their haunts during the other months of the 
year. Among the examples secured were a few immature 
males still in the female plumage, which leads me to believe 
that they breed in this country, but where they go to 
afterwards is a mystery. 
In this district there are all the conditions imaginable— 
dense forests with numerous streams, a low range of hills of 
some nine hundred to a thousand feet in elevation, and 
level cattle-breeding lands in the north; yet in spite of all 
these varied localities these birds disappear entirely. 
166. Tityra inquisitor. 
Lanius inquisitor Licht. Verz. Doubl. p. 50 (1823 : San 
Paulo). 
Tityra inquisitor Berlepseh, J. f. O. 1887, p. 132 (Para¬ 
guay) ; Sclater, Cat. B. Brit. Mus. xiv. p. 331 ; Ihering, 
Revista Mus. Paulista, vi. p. 327 (Paraguay). 
Tityra atricapilla Bertoni, Aves Nuev. Paraguay, p. 109. 
a, h. c-f. $ ad. Sapucay, March 1904. 
g-k. $ ; l, m. $ ad. ,, April 1904. 
n . $ ad. Sapucay, September 1904. 
These individuals agree perfectly with the series in the 
British Museum. The white at the base of the tail-feathers 
is much more extended than in T. hrasiliensis, reaching some 
distance from the base along the margin of the inner webs. 
[These birds are very numerous during the months of 
March, April, and the early part of May, and I have obtained 
one example in September; in the remaining months of the 
year they are among the rarest species. I have observed 
them most frequently along the water-courses in large 
forests, but have not yet found them breeding.— W. F.] 
167. Hadrostomus rufus. 
Caracterizado canela y corona de pizarra Azara, Apunt. 
ii. p. 181. no. 208, $ (1805). 
