42 



Herodotus observes, that kites and swallows are 

 found in Aegypt all the year round *. Prosper 

 Alpinus informs us, that there are two kinds of 

 swallows found in Aegypt; that one of them is 

 a bird of passage; but that the other, which, 

 from the description he has given of it, appears 

 to be the swift, hirundo apus, remains there all 

 the yearf- Aristotle takes notice of the de- 



aquis, in fundo, latere; ut Pecklinius in libro de aeris et 

 alimenti defectu et vitA sub aquis." The above quoted hex- 

 ameter line is not in Ovid's works, it must therefore have 

 been wrongly quoted from the Latin Anthologia. 



* Ixltm ^E v.oii p^EXt^ovE? $1 E"?E* tovlec ux. awo^EtflNW*. Lib. ii. 



cap. 22. 



Possibly some of the species remain all the year in the 

 warm regions of Africa and Asia, while others annually 

 migrate into the more northern parts of the world, where 

 they are very useful in clearing the air of innumerable insects, 

 with which it abounds in summer. 



Kites (lx!u>ot vel ixhvE?) are generally believed to migrate 

 into Aegypt in great numbers in autumn. 



f Hirundines duplicis generis ibi obseruantur; patriae 

 scilicet, quae, numquam ab Aegypto discedentes ibi perpetud 

 morantur; atque peregrinae; hae sunt nostratibus omnind 

 similes ; patriae vero toto etiam ventre nigricant. Hist. 

 Aegypt. vol. i. p. J98. 



