19 



t*35. Circus macrourus (S. G. Gmel.), N. Comm. E. Europe and 

 Petrop., XV., p. 439, pis. viii., ix. (1771). Central Asia to 

 [Woronez, S. Russia.] Altai ; Africa 



Pallid Harrier. India, Burma, 



China in winter. 

 Wing 3 340-360, ? 370-390 mm. ; throat 

 and chest white ; upper tail-coverts white, 

 banded with ashy grey. 



b. Thighs white, with rufous streaks or spots. 



t*36. Circus pygargus'^ (Linn.), S.N., i., p. 89 Europe and 



(1758). [ex. Albin : Europe = England.'] Marocco ; Pales- 

 Montagu's Harrier. tine, Africa, 



India, China 



Wing (J 350-375 mm. ; throat and chest in winter, 

 pale bluish grey ; upper tail-coverts white, 

 tipped with deep ash colour. 



c. Thighs white, barred across with orange 

 rufous. 



37. Circus cinereus Vieill., N. Diet., iv., p. 434 

 (1816). [ex. Azara — Paraguay.] 

 Cinereous Harrier. 



Wing (J 310, ? 360 mm. ; throat and chest 

 white, barred with orange tawny ; upper 

 tail-coverts white. 



S. America, N. 

 to Central Peru 

 and E. Bolivia, 

 migrating to 

 Straits of 

 Magellan and 

 Falkland Is. 



d. Thighs rufous, either uniform or spotted 

 and margined with white. 



38. Circus assimilis assimilis Jard. and Selb., E. AustraUa, 



111. Orn., Ser. i., pi.' 51 (1828). [Near Tasmania, 



Sydney, N.S.W.] Celebes. 

 Spotted Harrier. 



J- C. pygargus abdullcB Floericke is undoubtedly a melanism ol this form. 



