Mr. J. I. S. Wliitalcer on Tunisian Birds. 91 



lu conclusion, I may observe that besides the species which 

 appear in the subjoined list, of which specimens were actually 

 obtained, Mr. Aplin met with a few others, not included in my 

 previous lists, as to the identity of which he had little or no 

 doubt whatever, but I have preferred not to introduce these. 



Except when otherwise stated, the observations on the dif- 

 ferent species in the following list are taken from Mr. Aplin's 

 field-notes, wdtli which he furnished me on his return home. 



1. Saxicola isabellin'a. (Cat. B. Brit. Mus. v. p. 399.) 

 M. Blanc has sent me specimens of this Chat from Tata- 



houine, in the south of the Regency. I never came across it 

 myself, nor did Mr. Aplin meet with it during his late 

 journey, so I think it must be looked upon as rather a rare 

 bird in Tunisin, which is perhaps the extreme western limit 

 of its range. 



2. Sylvia hortensis. 



I got a specimen of the Garden Warbler last year, but 

 overlooked it when making out my list. The species is not 

 uncommon in Tunis in spring. Mr. Aplin also found it 

 near Ghardimaou. 



3. Sylvia sarda. (Cat. B. Brit. Mus. v. p. 33.) 



I have specimens of this Warbler both from Mr. Aplin and 

 M. Blanc. Fairly common in the south in winter_, it frequents 

 the low bushes bordering the dry river-beds, and is found 

 also on the lower hillsides. It utters a harsh alarm-note, 

 somewhat like that of S. melanocephala. 



4. Sylvfa deserticola, Tristr. (Cat. B. Brit. Mus. v. 

 p. 32.) 



This is another of the birds which should have been 

 included in my last list. On re-examining my specimens of 

 Warblers I found two regarding the identity of which I had 

 some doubt, and a suspicion then formed in my mind that 

 they belonged to the present species was subsequently con- 

 firmed on seeing INIr. Dresser's plate and description of Af<^/i- 

 zoj)hilus deserticola in Part II. of his supplement to the 'Birds 

 of Europe.' I obtained my specimens towards the end of 

 March in the Alcpi)o-piuc woods between Tebessa and Feriana, 



