1920.] Cape San Antonio, Buenos Aijres. 69 



congener, it is frequently found in association with the 

 latter. An exception to the said custom was when on 

 3 November, 1915, I navigated the canal between Ajo and 

 Santo Domingo and found only melanoleucus on the first 

 half of the day's joui'ney, to be replaced entirely hy flavipes 

 later on. The most of the former w^ere in ones and twos, 

 the latter in numerous large flocks. 



Mr. Hudson's remarks on a double migration are doubtless 

 correct, as it is always in evidence with us, and yet is not 

 known to breed. Those individuals I have shot in February 

 and March were exceedingly fat, and were presumably 

 prepared for their northern journey. 



The Greater Yellowshank is a handsome and interesting 

 Wader, familiar to all denizens of the pampas. Its bold 

 and alert attitude catches the observer's eye as he approaches 

 the pool or marsh where it is feeding ; and the strong and 

 musical alarm cry is repeated in warning until the intruder 

 forces it to take refuge in flight with a last parting note or 

 two. 



404. Totamis flavipes Gm. Lesser Yellowshank. 



Iris dark brown ; bill at times dark olive at base, with 

 black tip, in others entirely black ; claws black. 



My own notes correspond with those of Mr. Hudson to 

 the eff'ect that whilst not entirely absent throughout the 

 year, it is much scarcer during the winter months. Speaking 

 generally, it is more abundant than Totanus melanoleucus ; 

 and if often seen singly or in pairs occasionally increases to 

 small flocks, which is very unusual with the larger species. 

 At the beginning of the great flood in 1913, I particularly 

 note (on 30 Octobei) that I have seen aosolutely none on 

 all my previous journeys between Ajo and Buenos Ayres, 

 etc., and three days later it makes its appearance " in great 

 numbers, large flocks, on mud-flats near Yngleses head- 

 station," after which it becomes generally distributed. 



In flight, habits, and note, Totanus flavipes resembles 

 Totanus melanoleucus — all on a similar scale, be it under- 

 stood. 



