TEINGITES.— CALIDEIS. 385 



and the interior of British North America, northward to the Arctic coast*.— 

 Mexico, Matamoros {Dresser ^^^ le), Guanajuato [Dughs^^); Honduras, Euatan I. 

 {Gaumer » i^) ■ Cqsta Rica {v. Frantzius ^% San Jose {Cherrie ^ Underwood, in litt.). 

 —South America in winter, to Amazonia, Brazil, and Paraguay s.—E. Siberia «. 

 — Incidental in Europe ^. 



The Buff-breasted Sandpiper is easily recognized by the black marbling on the 

 inner surface of the quills. It breeds in the extreme northern parts of America, and 

 migrates south in winter. During the latter season the species is met with in Central 

 America, passing apparently by both the Atlantic and the Pacific coasts to the southern 

 continent. On migration it occurs in flocks, and is found in abundance in some localities. 



Like many other small Waders, T. subrujicollis is somewhat demonstrative during 

 the breeding-season, and goes through many curious evolutions, the males puffing out 

 their breast, walking about with one wing uplifted, and soaring to a height of thirty 

 feet with the legs hanging down ^, 



The nest is a mere depression in the ground, lined with a little moss. The eggs are 

 four in number, pyriforra in shape, of a pale greenish-white, thickly and rather coarsely 

 blotched with umber-brown and underlying pale purple, the blotches intermingled 

 with some smaller markings ^. 



CALIDRIS. 



Calidris, Cuvier, Le90iis Anat. Comp. t. ii. (1800) ; Sharpe, Cat. Birds Brit. Mus. xxiv. p. 526 

 (1896). 



Calidris belongs to a small section of the Scolopacinae in which the culmen is of 

 about the same length as the tarsus. The Little Stints (Limonites) are also nearly 

 allied to the present genus, but the latter is easily recognized by the absence of a 

 hind toe. 



Only one species is known, cosmopolitan in its range, breeding in the xerotic Regions, 

 and going south in winter. 



1. Calidris arenaria. 



The Sanderling, Albin, N. H. Birds, ii. p. 68 \ 



Tringa arenaria, Linn. Syst. Nat. i. p. 351 ^ ; Seebohm, Geogr. Distr. Charadr. p. 431 ^ 



Calidris arenaria, lUiger, Prodr. p. 349 ' ; Scl. P. Z. S. 1857, p. 330 ' ; 1859, p. 369 ' ; Scl. & Salr, 



Ibis, 1859, p. 339'; Salv. Ibis, 1864, p. 886 '; 1889, p. 379'; Lawr. Ann. Lye. N. Y. ix. 



p. 310 '" ; Mem. Bost. Soe. N. H. ii. p. 308 " ; Bull. U. S. Nat. Mus. no. 4, p. 47 '' ; 



Sumicbr. La Nat. v. p. 333"; Boueard, P. Z. S. 1883, p. 463"; Baird, Brew., & Bidgw, 



Water-Birds N. Amer. i. p. 349'°; A. O. U. Check-1. N. Amer. Birds, 3nd ed. p. 91 "; 



Elliot, N. Amer. Shore-Birds, p. 104"; Sharpe, Cat. Birds Brit. Mus. xxiv. p. 536"; 



Gates, Cat. Eggs Brit. Mus. ii. p. 53 ". 

 BIOL. CEKTR.-AMEE., Aves, Vol. III., May 1903. 49 



