3j4 Mr. D. A. Bannerman on the [Ibis, 



small example of Tinnunculus t. canariensis, tiie island-race 

 of the Common Kestrel, during ray first visit of two days to 

 this island in January 1904^ (Field Naturalists' Quarterly, 

 1904, p. 249). 



Phalacrocorax graculus. Shag. 



Busto is the first to mention the Shag (Topografia 

 medica, 1864, p. 105). 



Cahrera says (Catalogo, 1893, p. 64) that Phalacrocorax 

 cristatuft Fahr. is more rare than the Cormorant, and notes 

 that it is cited by Busto. 



It is evidently this species which Polatzek intended 

 (Orii. Jahrb. 1909, p. 133) under the non-existing name 

 " P. garrnlus" He includes and numbers it in his list of 

 visitors, indicating that he considers it authenticated, but 

 gives no particular reason for doing so. 



As Busto and Cabrera are the only authors who men- 

 tion this species, and as from his own account it appears 

 that Polatzek never saw a specimen himself, I disagree 

 with him in placing the Shag amongst the authentic 

 visitors, and do not even consider it worthy of a place 

 in Appendix A. 



Sula sula. Brown Booby. 



Under the name Sula falva Vieill., ( *abrera (Catiilogo, 

 1893, p. 64) records a bird as " an accidental visitor 

 according to Serra. I have met with two examples, killed 

 on the coast of Tenerife, in the Scientific collection in the 

 Capital." 



In the first place there is no such name as Sula 

 fulva, either of Vieillot or of any other author. It is 

 most probably a misprint for Sula fusca Brisson = 

 Sula sula. 



I have not seen Serra's work and so cannot give tiie 

 original and correct reference. If S. sula is indeed the 

 species intended, the skins, if properly identified, were 

 probably brought from the Cape Verde Islands. 



