1^19.] Birds of the Canary Islands. 403 



Von Thauiier, who was in Gran Caiiaria t'rom January to 

 April 1909, wrote of this Swift :— 



"Very common in the north of Gran Canavia and also in the imme- 

 diate neighbourhood of Las Pahuas, while it probably does not 

 occur in the south for I, at all events, never saw it." (Orn. 

 Jahrb. 1910. p. 89.) 



Palma. 



"On January 17, 190o, observed large numbers of Swifts circling 

 round. I did not see them again in the island until my departure 

 on January 8." (Von Thanner, Orn. Jahrb. 1908, p. 207.) 



Gomera. 



Though not actually recorded from this island, there is no doubt that 

 it occurs there. 



Hierro. 



A skin in the Tring Museum labelled El Pinar, obtained 3. iii. 190."5, 

 by von TJianner. (Examined by myself, August 1918.) 



Eastern Group. 

 Fuerteventura, 



" It appears in many districls. During my journey in the spring 

 I shot the hrst on the 10th of February in Rio Cabras." 

 (Polatzek, Orn. Jahrb. 1908, p. 164.) 



" March 10, 1889. Swifts seen in Fuerteventura." (Meade-Waldo, 

 MS. note-books.) 



" April 1, 1888. Swifts breeding in sand cliffs in Fuerteventura." 

 (i\Jeade-Waldo, MS. note-books.) 



" Very common, much more so than in Tenerife." (Von Thanner, 

 Orn. Jahrb. 1905, p. 60.) 



'* We found these Swifts to be plentiful in the Eastern Group during 

 May and June, but particularly so in Fuerteventura. They were 

 seen in numbers round Puerto Cabras, also met with throughout 

 our long journey in the ishuid, being especially numerous at 

 Tostou, in the valley of La Peiia, and at Antigua." (Banuerman, 

 Ibis, 1914, p. 252.) 



Lanzarote. 



" I observed the Pale Swift only as a bird of passage, which, how- 

 ever, does not exclude the possibility of its breeding in another 

 part of the island. I can vouch for the passage of the last birds 

 through Lanzarote on the 27th of April. On this island I seldom 

 saw more than three pairs Hying together." (Polatzek, Orn. 

 Jahrb. I90tf, pp. 163, 164.) 



