IS lloii. N. C. Rotlischild and Mr. A. F. K. Wullastoii 



tually S. mumus and S. niystacea may turn out to be the 

 same speeies. 



44. Aqrobatks galactotes minor (Cab.). 

 307 c?, 445 ?, 333(?). 



North-East African specimens of the Rufous Warbler are 

 smaller and somewhat darker on the back than typical 

 examples from Spain. 



The Rufous Warbler was first noticed at Shendi on 

 March 10th, after whicli date it became a good deal more 

 numerous. 



45. MONTICOLA CYANUS (L.) . 



248 ?. 



Rock-Thrushes were occasionally seen on the rocky hills 

 out in the desert. 



46. SaXICOLA fENANTHE (L.). 



153 ?, 356 d, 413 6. 



The Common Wheatear was frequently seen on the river- 

 bank. 



47. Saxicola isabellina Cretzschm. 



148(?), 209(?), 4(?). 



The Isabelline Wheatear was not uncommon in the desert. 

 It was usually to be seen in pairs. 



48. Saxicola melanoleuca (GUld.). 



249 6, 313 6, 266 ? , 298 ? . 



The Black-throated Wheatear was a fairly common fre- 

 quenter of the river-bank. It was seldom seen during 

 the day, but towards evening became very active ; on 

 several occasions we observed one of these birds, at least an 

 hour after sunset, when it was quite dark, dart out from the 

 bank and hawk iox flies over the water like a Flycatcher. 



49. Saxicola deserti Temm. 

 24 6 , 83 J, 100 d, 44 (sex?). 



The Desert-Wheatear was as often to be seen on the river- 

 bank as in the desert. It was generally met with in pairs. 



