224 



CRESTED SP1ZJETUS. 



a native of Asia and Ceylon, and seems extremely 

 rare. 



We now pass to the more common genus Cir- 

 cus, or Harriers. This is the form which, in their 

 own circle, is thought to represent the nocturnal 

 birds of prey. They are of a light and buoyant 

 form, the body and members lengthened, in some 

 species almost weak. The feet and tail bearing 

 considerable resemblance to those parts in the 



