191 9'] Cape San Antonio, Buenos Ayres. bV6 



I believe there was a nesting-colony in the centre of a 

 deep swamp near the Yngleses head-station in 1913, and 

 I have had occasional odd clutches of eggs brought to me 

 at intervals during the past years ; but, frankly speaking, 

 the situations affected for breeding-purposes are not easy 

 of access or to my liking. The rushes are too dense for 

 canoe-work, and to negotiate them on horse-back calls 

 for youth, recklessness, and a horse equally powerful and 

 steady. So I content myself with saying " I have been 

 there," and a reference to one such colony as described in 

 my former paper (Ibis, 1879, p. 414). 



The usual clutch of three eggs (previously described) 

 average 42x35 nun. 



309. Milvago chimango Vicill. Chimango Carrion-Hawk. 



Iris very daik brown. Beak light brown. Bare parts 

 pale white. Legs* and feet light grey. Claws browai, also 

 the beak. 



To my former notes on the Chimango, Mr. Hudson has 

 added such a detailed and interesting account of the species 

 and its habits that any further remarks on my part can only 

 be- of an incidental nature, and only refer to its nesting- 

 characteristics. 



In passing, I would corroborate my original statement as 

 to the large numbers which roost at nights in the swamps 

 during the winter- time. 



Referring again to my previous observations on its 

 nesting-sites — when 1 insisted on its local preference for the 

 centre of a large or deep swamp versus trees or grass- 

 covert;-, — I now furnish the following modified rectifications. 

 1^'rom 18/3 to 189.2 1 had continued to take nests solely in 

 the first-named situations. Then, iu the last-named year, 1 

 found three separate nests on the ground — " merely a hollow 

 amongst grass, roughly lined with a little wool," — the last 

 as late as 31 December. There was no recurrence of the 

 experience until 3 December, 1898 (one similar nest). The 

 following year (1899J, on 5 November, I came across no 

 fewer than six scattered nests in the rincoues, amongst the 



