56 
Mr, Charles Chubb on the 
a . $ ad. Sapucay, April 19, 1903. 
Bill reddish pink ; iris warm brown. 
h. ? 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. 
They vary in colour from pale lavender-grey to a vinous 
colour and measure : axis 1 *45 to 1’7 inches ; diameter 1*1 
to 1*25. 
Full-grown young birds (hatched in confinement), pre¬ 
sented to the British Museum by Sir William Ingram, are 
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 
eggs 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.— TV. if] 
3. Crypturus undulatus. 
Ynambu list ado Azara, Apunt. iii. p. 53. no. 
(1805). 
cccxxx. 
