56 Mr. Charles Chubb on the 



a. $ ad. Sapucay, April 19, ]903. 

 Bill reddish pink ■ iris warm brown. 



b. ? ad. Sapucay, July 8, 1904. 



Bill bright red; feet purplish red ; iris reddish brown. 



According to Azara, this is the "House-partridge" of 

 the Guaranis, and inhabits the forests and woods and even 

 plantations which have masses of rank grasses where the 

 bird can hide. He also says that it lays but four eggs. 

 According to Mr. Foster, however, five or six are more 

 frequently laid. Azara remarks that when any person passes 

 close to the nest the mother attacks and attempts to drive 

 away the object of her fears. Mr. Foster did not observe 

 this habit. 



The eggs of this species sent by Mr. Foster were obtained 

 during the months of October, November, and December. 

 Thev vary in colour from pale lavender-grey to a vinous 

 colour and measure : axis 1 *45 to 1*7 inches ; diameter l'l 

 to 1-25. 



Full-grown young birds (hatched in confinement), pre- 

 sented to the British Museum by Sir William Ingram, arc 

 distinguished by their dark brown, instead of chestnut, upper 

 surface, the dark lead-coloured head, fore-neck, breast, and 

 flanks. On the chest are a few feathers with dusky black 

 subterminal bars, and a few white spots may be seen on 

 some of the wing-coverts and secondaries, occasionally pre- 

 ceded by a black subterminal bar, the greater coverts and 

 secondaries also shew a few scattered spots of dull white. 



[Six appear to be a full clutch. I never found any of the 

 eg°-s hard-set, but sometimes incubation had commenced in 

 clutches of five, so I fancy that six eggs are rarely exceeded. 

 There is no nest, only a depression scratched in the ground, 

 usually near the edge of some of the numerous cattle- 

 tracks and therefore easily discovered. The bird is common. 

 There is much variation in colour between the different 

 clutches of eggs. — W. F.~} 



3. Crypturus undulatus. 



Ynambu list ado Azara, Apunt. iii. p. 53. no. ccexxx. 

 (1805). 



