14 Lieut. -Col. J. W. Yerbury — Further Notes 



from the Barrier Gate; Al Hautah or Laliej, 19 miles off; 

 aud Haithalhim^ roughly 25 miles away. Aden itself yielded 

 little but shore-birds. Aden has, however, many human 

 visitors " passing on migration " ; and as most of these land 

 and drive to the tanks, a word regarding the birds likely to 

 be seen there may be of interest. The species will be few, and 

 the following list will probably include all, viz. : — Neophron 

 percnopterus and Milvus (sgyptius en route, while at the 

 tanks the following are almost certain to be met with : 

 Colamba livia, Turtur senegalensis, Passer domesticiis , Pycno- 

 notus xanthopijgius^ Myrmecocichla melanura, and Ptyano- 

 progne obsoleta ; Hyphantornis galbula and Passer euchloris 

 are both close by, and may also be seen. Other birds, of 

 course, resort to the tanks occasionally, but their visits are 

 few and far between. On returning to the ship Larus 

 hemprichi is certain to be seen round about. 



I. ACCIPITRES. 



1. VuLTUR MONACHUs, Linn. 



Gyps fulvus, Barnes, Ibis, 1893, p. 63. 



A pair of large Vultures were seen in the Maala plain, 

 Aden, on February 15th, but not shot at; the only occasion 

 on which these birds were met with during my recent visit. 

 The Vulture referred to by Barnes as being in the possession 

 of Mr. Still at Aden is now in the Zoological Society's 

 Gardens, and has been identified as Vultur monachus* ; but 

 it is possible that some species of Gyps may also occur there. 



2. Neophron percnopterus (Linn.) ; Yerbury, Ibis, 

 1886, p. 13 ; Barnes, Ibis, 1893, p. 64. 



On reference to my old notes I find this species recorded 

 as having been seen at Aden in every month of the year, 

 whence my conclusion that it was a resident and bred there. 

 On talking the matter over with Capt. Shopland and Capt. 

 Nurse, both these gentlemen stated that in their experience 

 the numbers of this species diminished considerably during 

 the hot weather. It is probable therefore that Barnes is 



* [See P. Z. S. 1892, p. 716. The specimen was presented bv Mr. W. H. 

 Still, of Aden.— P. L. S.] 



