5 76 
Mr. Charles Chubb on the 
118. COPURUS COLONUS. 
Colon Azara, Apunt. ii. p. 114. no. clxxx. (1805). 
Muscicapa colonus VieilL N. Diet. d’Hist. Nat. xxi. p.448 
(1818 : Paraguay). 
Copurus colonus Berlepsch, J. f. O. 1887, p. 117 (Paraguay); 
Sclater, Cat. B. Brit. Mus. xiv. p. 50; Oberh. Proc. TJ.S. 
Nat. Mus. xxv. p. 139 (1902 : Sapucay); Ihering, Revista 
Mus. Paulista, vi. p. 324 (Paraguay) ; Hellmayr, Abhandl. 
Akacl. Wiss. Miinchen, xxii. p. 645. 
a. £ ad. Sapucay, November 7, 1902. 
h. ? imra. ,, February 24, 1904. 
c. 2 ad. „ March 27, 1903. 
Bill and feet black ; iris brown. 
d. ? ad. Sapucay, April 27, 1904. 
e. f.($2 ad. Sapucay, May 5, 6, 1904. 
g. S ad. Sapucay, June 13, 1903. 
[Resident but not common, it can at times be met with 
along the clear cattle-tracts of the woods. The long tail- 
feathers appear on the young bird about the end of July or 
early in August.— TV. F.~\ 
119. Machetornis rixosa. 
Suiriri Azara, -Apunt. ii. p. 148. no. cxcvii. (1805). 
Tyrannus rixosus Vieill. N. Diet. d*Hist. Nat. xxv. p. 85 
(1819 : Paraguay). 
Machetornis rixosa Berlepsch, J. f. O. 1887, p. 12 (Lam- 
bare) ; Sclater, Cat. B. Brit. Mus. xiv. p. 52; Oates, Cat. 
Birds* Eggs Brit. Mus. iii. p. 189, pi. 4. fig. 5 (1903) ; 
Ihering, Revista Mus. Paulista, vi. p. 324 (Paraguay) ; 
Hellmayr, Abhandl. Akad. Wiss. Miinchen, xxii. p. 648. 
a. $ ad. Sapucay, June 9, 1903. 
h. (J ad. Ybitimi, January 31, 1904. 
c. ? ad. Sapucay, July 19, 1904. 
An egg, obtained on October 11, 1903, has the ground¬ 
colour grey with blackish spots, blotches, pencillings, and 
underlying spots of lead-grey, distributed over the entire 
surface. Axis 1*0 inch; diam. 0 6. 
[Resident and common. Nest usually built in a hole in a 
