MONTAGU'S HARRIER. 



151 



to 10th primaries but brown-black bars crossing both webs, inner- 

 most secondaries as rest of upper-parts ; primary-coverts pale 

 ashy-grey ; rest of wing- coverts rather darkei as rest of upper-parts. 

 This plumage is acquired by complete moult which appears to take 

 place at no regular period as individuals in moult taken in every 

 month have been examined. 



Montagu's Harrier The Hen-Harrier 



(C. pygargus). (C. c. cyaneus). 



To sliow difference in wing-formula and emarginations. 



Adult female. Winter and summer. — Crown dark brown, 

 feathers edged rufous (whitish-buff basally on fore-head) ; nape 

 and hind-neck with wider and paler edgings, those in centre of 

 nape usually white ; rest of upper-parts dark brown, feathers 

 with rufous tips when new ; some scapulars with large buff spots ; 

 upper tail-coverts white with penultimate spot or bar (some- 

 times reduced to narrow streak) of dark brown to rufous-brown ; 



