268 BIRDS OF TUNISIA 



From Marocco I have a single specimen which may be referred 

 to it. In TripoH it appears also to be met with sparingly, though 

 most of the examples mentioned in my list of birds from that country 

 {Ibis, 1902, p. 654) as belonging to the present subspecies should 

 be referred, instead, to the more rufous G. t. Carolina. 



In its general habits, as well as in its song, food and mode of 

 nesting, G. t. deichleri does not appear to differ much, if at all, from 

 the preceding form. 



GALERIDA TUEKLM CAROLINA, Erlanger. 

 EUFOUS SMALL-BILLED CEESTBD LARK. 



Galerida cristata carolinse, Erlanger, Orn. Monatsb. 1897, p. 186. 

 Galerita thecklae carolinse, Erlanger, J. f. 0. 1899, p. 342. 



DescrijHion. — Adult male, spring, from Tatahouine, South Tunisia. 



Differs from G. thcklce dciclileri in being of a bright rufous colour instead 

 of pale isabelline ; the underparts are not quite so white, and the breast 

 marking rather more pronounced. 



Soft parts and measurements as in G. t. deichleri. 



Adult female similar to the male, but rather smaller. 



This bright rufous form of short-billed Crested Lark, though no 

 doubt closely allied to the preceding one, may, I think, readily be 

 distinguished from it, and I therefore follow Baron v. Erlanger in 

 separating it as a subspecies. 



My Tunisian collection possesses several examples of both forms, 

 and they appear to be fairly distinct and not to intergrade like some 

 of the other forms. This is no doubt due to the fact that the two 

 forms inhabit districts which differ considerably from one another 

 in their physical character, G. t. deichleri being found in the light- 

 coloured and more sandy country bordering the Chott Djerid, and 

 extending southward and westward of it, though how far in these 

 directions appears to be at present unknown, while G. t. carolincB 

 occurs on the darker rocky plains and barren broken country further 

 east, and extending southward probably as far as the Tripoli frontier. 

 From the Vilayet, in fact, as mentioned in the preceding article, 



