BIRDS OF THE BRITISH ISLES. 209 



Montagu's Harrier {Circus cineraceiis, Montagu) is a mi- 

 gratory bird in the British Islands. It is also found 

 throughout most parts of Europe (with the exception of 

 the extreme north) and Western Asia, moving southward 

 in winter. The adult male has the upper parts slate-grey ; 

 primaries, black ; secondaries, barred with black ; upper 

 tail-coverts, white; inner web of outer tail-feathers, barred 

 with rufous and white ; chest, pale grey ; remainder of 

 under parts, white ; feathers on breast, streaked narrowly 

 with chestnut ; irides, yellow ; bill, black ; legs, feet, and 

 cere, yellow. Length, from seventeen to eighteen inches. 

 The female is usually brown on upper parts, and buftish- 

 white below, with streaks of rufous brown. 



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