27 4 
Mr. Charles Chubb on the 
57. Crotophaga ani. 
Crotophaga ani Linn. Syst. Nat. i. p. 154 (1766) ; Hartl. 
Ind. Azara, p. 17 (1847) ; Berlepsch, J. f. O. 1887, p. 23 
(Lambare) ; Shelley, Cat. B. Brit. Mus. xix. p. 429; Ihering, 
Revista Mus. Paulista, vi. p. 335. 
Ann6 Azara, Apunt. ii. p. 344. no. cclxiii. (1805). 
a. $ ad. Sapucay, March 27, 1903. 
Bill, tarsi, and feet black ; iris brown. 
b. $ ad. Sapucay, April 22, 1903. 
c. $ ad. „ April 18, 1904. 
The eggs of this species are pale blue, covered with a white 
chalky substance. The measurements are : axis 1*2 to L4 
inches ; diameter 0*9 to 1’05. 
[Communal nest at an elevation of about 18 feet. A 
number of the birds lay their eggs together until the nest is 
often so full that many fall out. 
The nest is often built in a palm (coco) and is impossible 
to reach on account of thorns on the trunk of the tree. 
Boys get the eggs by smashing the nest with stones; they 
fall out on to the grass and many are unbroken. I have 
found parasitic eggs on two occasions, but I do not know the 
parent. As many as twenty eggs are laid in one nest. 
This bird is resident and common.— W. i^.] 
58. Guira guira. 
Cuculus guira Gm. Syst. Nat. i. p. 414 (1788 : Brazil). 
Piririgua Azara, Apunt. ii. p. 340. no. cclxii. (1805); Hartl. 
Ind. Azara, p. 17 (1847). 
Crotophaga piririgua Vieill. N. Diet. d’Hist. Nat. i. p. 549 
(1816, ex Azara). 
Octopteryx guira Berlepsch, J. f. 0.1887, p. 23 (Lambare). 
Guira guira Shelley, Cat. B. Brit. Mus. xix. p. 433; 
Ihering, Revista Mus. Paulista, vi. p. 335. 
A large number of the eggs of this species were sent, 
collected during the months of October, November, and 
January. They are deep blue in colour, with a network of 
white chalky substance distributed irregularly over the 
entire surface. A few are almost entirely without any chalky 
