CHAKADRIUS. 109 



Breeds in the Arctic regions and is a winter migrant in British 

 Guiana. 



Range in British Guiana. So locality recorded. 



Ea-tralimital Range. South Brazil, Peru. Margarita Island, 

 Central and Xorth America. 



Habits. According to Schomburgk (Reis. Guian. iii. p. 750) 

 the habits and distribution of this species are the same as those of 

 CJiaradriu.^ rirginianus = Phivialis dominicus, p. 105. 



Mr. J. J. Qaelch (Timehri (2) x. p. 271 ) ob.ervcd this species 

 in British Guiana, and remarks : — ''The second migrant of the 

 genus, the Great-billed or Wilson^s Plover {^£. ivilsonia). This 

 species does not appear to be a common migrant here, though no 

 doubt it may have been confounded with Holoptenis cayanv.s, the 

 Spur-wing Plover.^' 



G6. Cliaradritis semipalmatus. 



Semipalmated Plover. 



Charadrius semipahnata Bonap. Joui-n. Acad. Xat. Sci. PhiLid. v. p. 9S, 

 1S25 (Coast of Xew Jersev) ; Brabouiuie &. Chubb, B. S. Amer. i. 

 p. 39, no. 3S0, 1912. 



Cli a I'o drills hrevirosfris Cab. in Sehomb. Eeis. Guian. iii. p. 750, 1S4S. 



lEgialitis semipalmata Salvin. Ibis. 1SS6. p. 17S. 



^gialitis semipalmatus Sharpe, Cat. B. Brit. Mus. xxiv. p. 250, 159G ; 

 Quelch, Tmiehii (2) x. p. 270, 1S96 (migration). 



Adidt [icinter plumage). General colour above earth-brown 

 including the top of the head, sides of the face, a band across the 

 chest, back, wings, and tail; forehead, throat, a narrow collar on 

 the hind-neck, and a bar on the wing white like the abdomen, 

 under tail-coverts, axilhiries. and under wing-coverts ; bastard- 

 wing, primary-coverts, quills, and tips of tail-feathers blackir^h. 

 " Bill black, basal half deep orange ; feet pale flesh-colour, claws 

 black ; iris deep liazel.'* 



Total length 150 mm., culnien 1.3, wing 124:, tail 52, tarsus 25. 



The specimen described was taken on the Abary River in 

 Septemljer 1007. 



Adult (summer plumage). Differs in having a broad black band 

 across the fore part of the head, sides of the face, and a complete 

 collar round the neck also black. 



Breeds in the Arctic rpgions and occurs in British Guiana 

 during the autumn and winter. 



