263 Mr. D. A. Bannerman on an Ornithological 



A large series of birds was obtained from the islands of 

 Graciosa, Montana Clara, Roque del Oueste, and Allegraiiza. 

 A description of each of these islands with their various 

 nesting colonies is given in Part I. 



Bill pale yellowish horn-colour; iris dark hazel ; feet 

 pale flesh-colour, outer toe and webs dusky. 



A series of 53 eggs was obtained from the four islands 

 mentioned above between May 28 and June 14. 



As this large series offers exceptional opportunities for 

 compat'ison with the egg of P. kuhli kuhli, I have given 

 detailed measurements. When first laid they are pure white 

 in colour; a great variety of shapes are exhibited in the 

 series. 



79x51, 69-5x47,75x46, 78x49-5, 75x51, 70x47*5, 

 72 X 5 1 , 76 X 50, 725 x 50-5, 75 x 49-5, 73-5 x 51 , 73 x 52-5, 

 69-5x51, 74x50-5, 75x50, 70x48, 66x47, 75-5x49, 

 81x48, 77x50, 75x50, 78-5x47, 79x50-5, 69x49, 

 82 X 50-5, 78 x 49, 77-5 x 49, 70 X 50, 74 x 49, 75 x 51, 73-5 x 

 53,77-5x51,77-5x50, 83x48, 76x48, 73x50, 78x48, 

 71x49-5, 77x47-5, 75x49, 74x50, 74-5x51, 73-5x51, 

 70-5 X 49-5, 74-5 X 47, 78-5 X 50 mm. 



Bulweria bulweri. Bulwer's Petrel. 



Bulweria buliveri (.Jard. & Selby) ; Bannerman, Part I. 

 pp. 74, 80. 



A fine series of adult birds was obtained. It is not 

 possible in the case of this species to tell the sex of the bird 

 from external appearances, as is the case with P. k. flavi- 

 rostris. The most important measurements of the specimens 

 which I obtained are as follows: — 



Bill, c? 20-5-23 mm. (exposed part of culmen). 22 birds examined. 

 „ 2 20-5-21 „ „ „ 4 „ 



Tarsus, J 25-5-2S „ 22 ,, „ 



„ 2 26-5-27-5 „ 4 „ 



Wing-, c? 187-205 „ (average of 24 birds— 196-5 mm,). 

 „ 5 191-200 „ (average 195-5 mm.). 



Bulwer's Petrel resorts in the eastern Canary group to the 

 little island of Montana Clara to breed (Ibis, 1914, p. 80). 



