576 Mr. Charles Chubb on the 



118. COPURUS COLONUS. 



Colon Azara, Apuut. ii. p. 114. no. clxxx. (1805). 



Muscicapa colonus Vieill. N. Diet, d'llist. Nat. xxi. p. I IS 

 (1818 : Paraguay). 



Copurus colonus Berlepsch, J. f. O. 1887, p. 117 (Paraguay) ; 

 Sclater, Cat. 1?. Brit. Mus. xir. p. 50; Oberh. Proc. U.S. 

 Nat. Mus. x\v. j). 189 (190.2: Sapucay); Ihering, Revista 

 Mus. Paulista, vi. p. 324 (Paraguay) ; Hellmayr, Abhandl. 

 Akad. Wiss. Miinchen, xxii. p. 645. 



a. cj ad. Sapucay, November 7. 1002. 



b. ? imm. „ February 2 l, 1904. 



c. 9 ad. „ March 27, 1003. 

 Bill and feet black ; iris brown. 



d. V ad. Sapucay, April 27, 1904. 

 e,f. S ? ad. Sapucay. May 5, (5, 1904. 

 (j. S ad. Sapucay, June 13, 1003. 



[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. — //". F.~] 



110. Machetornis aixosA. 



Suiriri Azara, A.punt. ii. p. 1 18. no. exevii. (1805). 



Tyrannus rixosus Vieill. N. Diet, d'llist. 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 (1003) ; 

 Muring, Revista Mus. Paulista, vi. p. 324 (Paraguay); 

 Hellmayr, Abhandl. Akad. "Wiss. Mi'inchen, xxii. p. 648. 



a. $ ad. Sapucay, dune 0, 1903. 



b. S ad. Ybitimi, January 31, 1001. 



c. ? ad. Sapucay, July 10, 1004. 



An egg, obtained on October 11, 1003, has the ground- 

 colour grey with blackish spots, blotches, pcncilliugs, and 

 underlying spots of lead-grey, distributed over the entire 

 surface. Axis TO inch; diam. 6. 



[Resident and common. Nest usually built in a hole in a 



