CHARADRlIDvE. 



CHARADRIIDM. 



Squatarola helvetica (Linnaeus^). 

 THE GREY PLOVER. 

 Squatarola cinerea. 



Squatarola, Leach\. — Bill nearly as long as the head, rather strong, upper 

 mandible straight to the end of the nasal groove which is long and wide : then 

 raised and decorved to the tip ; nostrils subbasal, linear. Wings long, pointed, 

 the first quill-feather the longest. Legs of moderate length, slender, lower part 

 of the tibia naked : tarsi reticulated. Toes four in number : three directed 

 forward, and slightly webbed at their base, the fourth behind, rudimental, 

 elevated. 



In its habits, its general appearance, and in its double 

 moult, or periodical change to black on the under surface 



* Tringa helvetica, Linnseus, Syst. Nat. i. Ed. 12, p. 250 (1766), ex Brisson. 

 + Syst. Cat. M. & B. Brit. Mus. p. 29 (1816). 



