1920]. Cape San Antonio, Buenos Ayres. 67 



and 19 Marcli. I have no record of large gatherings, only 

 small flocks up to half-a-dozen, or single birds. It has a 

 swift Plover-like rnu on the ground. The flight is quick, 

 with very rapid movements of the wings, and erratic, similar 

 to that of a Snipe. The note when rising or on the wing 

 is soft and oft-repeated. 



The iris I have sometimes noted as light yellow, at other 

 times dark brown ; bill yellow at base, merging into dark 

 brown or black ; feet varying from pale or greenish yellow 

 to dark olive, with black claws. 



400. Tringa bairdi Coues. Baird's Sandpiper. 



Hudson dismisses this species in three brief lines. Claude 

 Grant procured but two specimens in the Ajo district, on 

 22 November, 1908 and 19 December, 1909, respectively; 

 and adds that it is "not nearly so common as the following 

 species {Tringa canatus), with which it usually consorts.'' 

 In view of what he states regarding the latter species when 

 he comes to deal with it, it is not surprising that my own 

 record, so far as Baird's Sandpiper is concerned, should be 

 an utter blank. 



Tringa canutus Sharpe, Cat. B. xxiv. p. 593. 



Hudson is altogether silent on the subject of this species; 

 but Claude Grant obtained various specimens at Cape San 

 Antonio on 19 December, 1908, and writes as follows: 

 '' These specimens are in moult and have almost assumed 

 the adult winter dress, but have not yet lost the wing-coverts 

 of the young plumage.'' And he adds " Two or three parties 

 of Knots, comprising eight or ten individuals, were observed 

 on the sea-shore at Cape «an Antonio. This appears to be 

 a new record for Argentina, but is not unexpected, perhaps, 

 as the bird has been traced as far south as Brazil." 



401. Tringa fuscicollis Vieill. Bonaparte's Sandpiper. 

 The bill is olive-coloured with a black tip, or sometimes 



entirely black; legs and feet equally variable, greenish yellow, 

 very dark grey or dark olive (almost black) ; claws black. 

 This IS ccrtiiinly our commonest Wader, and is found 



