70 BIRDS OF TUNISIA. 



Description. — Adult male, spring, from Marocco. 



Differs from C. siiecica merely in having the spot in the centre of the 

 blue throat-patch silvery-white instead of bright rufous. 

 Female resembles that of G. suecica. 



Observations. — Specimens are occasionally met vrith without any white 

 spot in the centre of the blue throat, but these are probably merely immature 

 individuals. 



The White-spotted Bluethroat occurs in Tunisia and other parts 

 of North-west Africa as a winter migrant, but is not common 

 anywhere in the country, though more plentiful in some years than 

 in others. Dr. Koenig and Baron v. Erlanger have both met with the 

 species in the Regency, and the latter mentions having seen it 

 frequently in October and November in the neighbourhood of the 

 Oued Gabes (J./. 0. 1899, p. 21.5). 



Dr. Koenig also met with it near Gabes in spring as late as May 

 18th, on which occasion he obtained specimens and saw many others 

 {J.f. 0.1888, p. 205). 



In Algeria and Marocco, from both of which countries I have 

 specimens, the species occurs in limited numbers in winter and on 

 passage, as it does in Tunisia. 



In its general habits and in its song the present form appears not 

 to differ from C. suecica. 



ERITHACUS RUBECULA (Linnaeus). 

 EOBIN. 



Motacilla rubecula, Linn. Syst. Nat. i, p. 337 (1766). 



Erythaca rubecula, Stvainson, Fauna Avier., Birds, p. 188 (1831). 



Erithacus rubecula, Seebohm, Cat. Birds Brit. Mus. v, p. 299; Koenig, 



J.f. 0. 1892, p. 413; Erlanger, J.f. 0. 1899, p. 213. 

 Sylvia (Erythacus) rubecula, Malhcrbe, Cat. Bais. d'Ois. Alg. p. 11 



(1846). 

 Rubecula familiaris, Loche, E.xpl. Sci. Alg. Ois. i, p. 224 (1867). 

 Dandalus rubecula, Koenig, J. f. 0. 1888, p. 206. 



Description. — Adult male, winter, from Ghardimaou, North Tunisia. 

 Above olive-browu ; forehead, lores, entire throat and breast bright 



