Expedition to the Eastern Canary Islands. 287 



Sterna s. sandvicensis was found in Fuerteveutura and 

 Lanzarote (Webb & Berthelot, Orn. Canarienne, p. 41), 

 while Sterna hirando was said to be sedentary there. 



I did not meet with either of the above species during the 

 Expedition. The fishermen, however, knew the " Garajaos " 

 well, although they naturally do not discriminate between 

 the two forms. It is probable that Sterna hirundo is the 

 Tern which, according to their statement, visits the islands 

 in the summer when the " Sardinas " are plentiful. 



Sterna s. sandvicensis probably is occasionally seen in the 

 winter. I have procured specimens off Gran Canaria in 

 February. In Arrecife (Lanzarote) I saw stuffed examples 

 of both species which had been obtained in the immediate 

 neighbourhood. 



No specimens were obtained. 



Sterna minuta Linn. The Little Tern. 



This Tern is also mentioned by Webb & Berthelot/Ornitho- 

 logie Canarienne,' p. 42, as inhabiting " La partie orientale 

 de FArchipel Canarien." We did not see any signs of this 

 bird, and could not hear of any having been procured in 

 recent years. It is safe to assume that Terns do not now 

 breed anywhere in the eastern group of islands. 



Larus cachinnans. The Yellow-legged Herring-Gull. 



Larus cachinnans Pallas ; Bannerman, Part I. pp. 53, 55, 

 61, 72, 81, 82, 83, 89. 



The series which I obtained of this Gull did not show 

 any variation in the colour of the back. All my specimens 

 are uniform light grey on the mantle and wing-coverts. 



The Yellow-legged Herring-Gull is a very common 

 resident in the eastern Canary Islands. We met with it on 

 every point of the coast which we visited. In the small 

 islands north of Lanzarote this Gull simply swarms ; it 

 is very tame and is not molested by man. On the East 

 Rock, according to the stories of the fishermen, the Gulls 

 suffer a good deal from the persecution of '' Falcons,"" 

 probably F. p. pelegrinuides. The isolated Roque del Este 



