102 OUR SUMMER MIGRANTS. 



Mr. Blyth has remarked (" Ibis," 1866, p. 336), 

 " that the average of adult Swallows from the 

 Indian region and China are smaller than the 

 average of European examples, to the extent 

 sometimes of an inch in length of wing ; but 

 some Indian are undistinguishable from Euro- 

 pean specimens." 



Dr. Jerdon, in his " Birds of India," says : 

 " On carefully comparing specimens from Eng- 

 land and Algiers in the museum at Calcutta 

 with Indian specimens from various parts of the 

 country, I can detect no difference." 



In a notice of the birds of the Andaman 

 Islands which appeared in the " Ibis" some years 

 since, Capt. Beavan remarked that the European 

 Chimney Swallow visits these islands at certain 

 seasons, and is not at all uncommon. 



There is no evidence that it ever visits 

 Australia ; but Mr. Gould has described a 

 Swallow from Torres Straits under the name 

 Hirundo fretensis, which is certainly very like 

 our well-known H. rustica, and might be a young 

 bird of that species in autumn plumage. It is 



