1919-] Bi7'ds of the Canary Islands. 319 



29 May to 11 June, 1905. Vilaflor, Tenerife. Single birds seeu every 

 day (von Thanner, Orn. Jahrb. 1908, p. 214). 



1 June, 1904. Vilaflor, Tenerife. Two seen (von Thanner, Orn. 



Jahrb. 1905, p. 212). 



19 June, 1912. Four House-Martins seen. "This late appearance 

 very striking" (von Thanner, Orn. Jahrb. 1912, 

 p. 227). 



10-20 June (1902-1912). Every year between the dates mentioned, for 

 the last ten years, three to four House-Martins pass 

 thi'ough Vilaflor, stay one or two days, and then 

 disappear (von Thanner, Orn. Jahrb. 1912, p. 227). 



Autumn Migration Records. 



29 Oct. to 1 Nov. 1905. Teuerife. House-Martins numerous on migra- 

 tion (von Thanner, Orn, Jahrb. 1908, p. 214). 



12 Nov. 1910. Tenerife. A single bird seen (von Thanner, Orn. 

 Jahrb. 1910, p. 229). 



Range. The House-Martiu breeds throughout Europe, and 

 in winter migrates south to south-east Africa and on the 

 west coast to Angola. Some of these latter are doubtless 

 the birds which pass through the Canary Islands. 



Riparia riparia riparia. Sand-Martin. 



Hirundo riparia Linn. ISyst. Nat. 10th ed. 1758, p. 192 — 

 Type locality : Sweden. 



For the present we must consider the Sand-Martin an 

 Occasional Visitor to the Canary Islands dui'ing the migration 

 period. 



The actual records are so rare that 1 have quoted in full 

 the only ones available, wliich were obtained in spring or 

 early summer. In certain years Sand- Martins evidently 

 pass through in fairly plentiful numbers. It is probable 

 that a few birds of this species accompany the Swallows and 

 House-Martins every year, and that further research will 

 prove it to be a regular Bird of Passage. 



Meade- Waldo only saw a few in 1890-91 (Ibis, 1893, 

 p. 192). On the 25th of April, 1890, and following days 

 they were numerous. The migration was preceded by two 

 or three days of dull steamy heat (Ibis, 1890, ]). 429). 



