106 



CHAEADEIUS. 



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



Habits.— Abbott, Ibis, 1861, p. 155. 



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

 typical eggs of C. morinellus in colour, but measure 1'8 by 1'2 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. 



CHARADRIUS MODESTUS RUBECOLA 



CHILIAN DOTTEREL. (Plate I.) 



Diagnosis. 



Charadbius modestus magnitudine minore : colore obscuriore. 



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



Synonymy. Charadrius rubecola, Vigors, Zool. Jbwra. 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. 2$ Orn. p. 328 (1858). 



