308 Mr. 0. Salvia's Five Months' Birds' -nesting 



Saxicola and Ruticilla mentioned in this paper, an intimate 

 relationship can be traced between the whole. In the first in- 

 stance, take the richly-coloured and highly-marked eggs of 

 S. leucura, S. aurita, and S. stapazina, all of which are greenish- 

 blue, with decided spots of red-brown ; next to them I would 

 place those of /S. rubetra, which are similarly marked, but not so 

 deeply ; then those of S. rubicola, which also are spotted, but 

 more indistinctly ; next follow the pale, delicately coloured eggs 

 of *Si. mnanthe, in which a tendency to spotted varieties is not 

 unfrequently noticeable ; then come the eggs of R. jjhcenicura, 

 among which spotted varieties occur, but not so commonly as iu 

 the preceding. Those of R. moussieri, with their just traceable 

 colouring, follow next in succession ; and lastly, those oiR. tithijs, 

 which, though white, and differing widely from the well-marked 

 eggs of S. leucura, can still be connected with the series through 

 the medium of S. cenanthe and R. moussieri. 

 The Arabic name for this bird is " Zinzuck." 



50. Ruticilla phcenicura. (Redstart.) 



I met with this species near El Djem, in the south of the 

 Regency of Tunis, at the end of Febi'uary. 



51. Ruticilla titiiys. (Black Redstart.) 



Not an uncommon bird near Tunis and many of the villages 

 of the Regency ; but it would appear to be more rare in the 

 mountainous districts, as I have no note entered of having 

 observed it. 



52. Erythacus rubecula. (Robin Red-breast.) 



I shot a Robin near Sousa in the beginning of March. I 

 never saw another during my whole stay. 



53. Philomela luscinia. (Nightingale.) 



I observed Nightingales in a wooded ravine near Khifan 

 M'sakta, in the early part of April. In the Salt Lake districts it 

 does not seem to occur. 



54. Aedon galactotes. (Rufous Sedge Warbler.) 



The head-quarters of this bird seem situated in the Salt Lake 

 districts, where we found it abundantly through the months of 

 May and June. It does not appear that marshy ground is an 



