19 



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

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

 [Woronez, S. Russia.} 

 Pallid Harrier. 



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

 and chest white ; upper tail-coverts white, 

 banded with ashy grey. 



E. Europe and 

 Central Asia to 

 Altai ; Africa 

 India, Burma, 

 China in winter. 



b. Thighs white, with rufous streaks or spots. 



t*36. Circus pygargus^ (Linn.), S.N., i., p. 89 

 (1758). [ex. Albin : Europe = England.] 

 Montagu's Harrier. 



Wing cJ 350-375 mm. ; throat and chest 

 pale bluish grey ; upper tail-coverts white, 

 tipped with deep ash colour. 



Europe and 

 Marocco ; Pales- 

 tine, Africa, 

 India, China 

 in winter. 



c. Thighs white, barred across with orange 

 rufous. 



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

 (1816). [ex. Azara — P_araguay.] 

 Cinereous Harrier. 



Wing ^ 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. Australia, 



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



Sydney, N.S.W.] Celebes. 

 Spotted Harrier. 



^ C. pygargus abdullcs Floericke is undoubtedly a melanism of this form. 



