C 2§I 3 



feems to prove to demonftration of what /pecies the 

 four fwallows caught in the (hip really were. 



He fays that they roofl on the fand either by 

 themfelves, or at mod: only in pairs, and that they 

 frequent the coafl much more than the inland 

 parts *. 



Thefe fwallows therefore, if they came from 

 Europe, mull have immediately changed at once their 

 known habits : and is it not confequently mod clear 

 that they were of that fpecies which BrilTon delcribes 

 under the name of Hirondelle de rivage du Senegal $ 



But though it mould be admitted, notwithftanding 

 what I have infilled upon, from Monf. Adanfon's 

 own account, that thefe were really fwallows of the 

 fame kind with thofe of Europe ; yet I mull flill 

 contend that they could not poffibly have been on 

 their return from Europe to Africa, becaufe the high 

 road for a bird from the moil Weflern point of 

 Europe to Senegal, is along the N. Well coafl: of 

 Africa, which projects greatly to the Weflward of 

 any part of Europe. 



What then could be the inducement to thefe four 

 fwallows to fly 50 leagues to the Weflward of the 

 coafl of Senegal, fo much out of the proper 

 direction ? 



It feems to me therefore, very clear, that thefe 

 fwallows (whether of the European kind or not) 

 were flitting from the cape de Verde iflands to the 



* Voyage au Senegal, p. 67. I wifli Monf. Adanfon had 

 alfo informed us whether thefe fwallows had the fame notes with 

 thofe of Europe, which is a very material circumftance in the 

 natural hiftory of birds, though little attended to by moft orni- 

 thologies. 



Vol. LXIL O o coafl 



