266 Mr. D. A. Bannerman on an Ornithological 



atlanticus (Bull. B. O. C. xxvii. 1911, p. 43). Eeceutly 

 Mathews, writing on Pvffinus assimilis assimilis (' Birds of 

 Australia/ vol. ii. p. 54)^, has shown that Bonaparte named 

 the Shearwater from Madeira and the Canary Islands 

 Pvffinus baroli (Compt. Eend. xlii. 1856, p. 769; id. Consp, 

 Av. 1S56, ii. p. 20-1) and has thus cleared up the matter 

 satisfactorily"^. 



Very few adult specimens of this Shearwater from the 

 Canary Islands are to be found in collections. It is not 

 therefore possible to critically compare it with examples 

 from the type locality. It has recently been shown tliat the 

 birds from the Cape Verde Islands are distinct, and it will be 

 interesting to compare a series from the Canary Islands, 

 when such is available, with a series from Madeira. 



During the Expedition the Little Dusky Shearwater was 

 met with for the first time on the island of Montaiia Clara. 

 A complete account of this bird is given in Part I. of this 

 paper (p. 79). 



A series of nestlings was obtained illustrating the way in 

 which the down is cast as the bird advances in age. This 

 was the only island upon Avhich we found them. They are 

 known to the natives by the name of ^' Tahoce.'''' 



A series of this Shearwater was obtained from Montaiia 

 Clara. 



Bill lead-colour, culmen black ; iris dark hazel ; back of 

 tarsus, outer toe, and sole black; two inner toes and webs 

 livid flesh-colour, more dusky on the webs. 



Two eggs only were procured on the 8th of June. 



In comparison with the egg laid by Bidweria bulweri that 

 of P. a. bji'oli is decidedly large for the size of the bird. 



In colour it is white with practically no gloss; the two 

 eggs measure 48-5 X 33 5 and 49 X 34 mm. 



* Wliile on tliis subject it mny be as well to point out that the birds 

 obtained in the Cape Verde Islands by Boyd Alexander (vide supra) are 

 not of the same species as the Madeira and Canary Island form. Mathews 

 ('Birds of Australia/ vol. ii. p. 70) has named this Shearwater Puffiims 

 Iherminieri hoycli. 



