THE CHRISTIAN NATURALIST. 183 



grate, is still involved in much doubt aa^ mystery.* 

 The reasons of their migration may more readily be 

 explained. A supply of food for their young is pro- 

 bably the grand spring of this movement, as it is of 



 A modern traveller tells us of the storks, that they pay an 

 annual visit to Turkey ; they arrive, he says, in vast numbers 

 about the middle of March, and always in the night. They 

 arrange their progress very systematically ; they send forward 

 their scouts, who make their appearance in a day or two before 

 the grand army, and then return to give in their report ; after 

 which the whole body advances, and in its passage leaves during 

 the night its detatchments to garrison the diflferent towns and 

 villageis in their way. Early in October, they take their de- 

 parture in the same manner, so that no one can know from 

 whence they come or whither they go. They are known in 

 the night time to leave all the villages, and have been seen in 

 the air like immense clouds.— Macff ill's Travels in Turkey , Italy 

 and Russia. 



With respect to the country of the Swallow, Buffon says, 

 'having had recourse to the most creditable travellers, I found 

 them agreed as to the passage of Swallows over the Mediter- 

 ranean,' * And Mr. Adanson has positively assured me, that 

 during his long stay at Senegal, he observed the long tailed 

 Swallow, (the chimney Swallow) arrive constantly in Senegal 

 about the time it leaves France, and as constantly to leave Sene- 

 gal in the spring.* 



Buflfon, howevei*, and Pennant inclined to the opinion that 

 some Swallows might remain during the winter in a torpid 

 state, and of this opinion was Gilbert White. See his History 

 of Selborne, with remarks of the Editor. — Constable's Miscel- 

 lany,^. 78 and 165. 



