106 



CHAEADEIU8. 



Literature. Plates. — Lesson & Gariiot, Voy. Coquille, Atlas, Zool. pi. 43. 



Habits.— Abbott, Ibis, 1861, p. 155. 



Eggs. — Gould, Proc. Zool. Soc. 1859, p. 95. Examples in the British Museum exactly resemble 

 typical eggs o£ C. morinellus in colour, but measure TS by TS inch. 



Specific 

 characters. 



Geographi- 

 cal distribu- 

 tion. 



Seasonal 

 distribution. 



The Falkland-Island Dotterel possesses a hind toe; has white axillaries; and its 

 secondaries are uniform brown, with a little white principally at the tip of the four or five 

 innermost. In breeding-plumage it is a very handsome bird ; the sexes are alike, but 

 young in first plumage and adults in winter have the whole of the underparts white, with 

 a broad band of brown across the breast. 



It is not known- to breed anywhere except, upon the Falkland Islands ; but upon Tierra 

 del Fuego it is represented by a nearly allied local race, the distinction between which and 

 the typical form is hereafter described. The Falkland-Island Dotterel migrates northwards 

 in autumn, and has occurred in various localities on the east coast of Patagonia, and as far 

 north as Buenos Ayres (Sclater & Salvin, Proc. Zool. Soc. 1868, p. 144) and Uraguay, 

 where Darwin procured it during the voyage of the ' Beagle.' I have an example collected 

 by Capt. Harrison at Santa Lucia, Rio de la Plate, which is unquestionably the Falkland- 

 Island form. 



It arrives on the Falkland Islands early in September and leaves during April. It is 

 an inland bird during the breeding-season, but on migration and during winter it becomes 

 a shore bird, as might be inferred from the fact of its plain winter dress. 



Diagnosis. 



CHARADRIUS MODESTUS RUBECOLA 



CHILIAN DOTTEREL. (Plate I.) 

 Charadrius MODESTUS magnitudine minore : colore obscuriore. 



Variations. The Chilian and Falkland-Island Dotterels appear to intergrade. 



Synonymy. Charadrius rubecola, Vigors, Zool. Journ. iv. p. 96 (1829). 



Squatarola urvillii (Garnot), apud Bridges, Proc. Zool. Soc. 1843, p. 118. 



Hiaticula fusca (Gould), apud Cassin, U.S. Expl. Exp., Mamm. ^ Orn. p. 328 (1858). 



