94 



FALCONID>E. 



a'. Uniform greyish above, chest rufous trivirgatus, p. 105. 



6'. Above brown, head only gi-ey ; chest white, 



with blackish stripes griseiceps, p. 106. 



/'. Thighs rufous buff, with narrow rufous bars. 



c'. Breast transversely barred brutus, p. 107. 



d^. Breast uniform in centre, above uniform 



blackish tibialis, p. 108. 



jr*. Thighs uniform white, or at most only slightly 

 banned with rufous. 



e\ Breast barred hadius, p. 109. 



a". Much the largest ; wing nearly 9 inches 



in length in ^ a. brevipes, p. 111. 



¥'. Smaller : wing in J not exceeding 8"5 

 inches in either sex. 

 a?. Delicate salmon-rufous below. 



a". Larger (especially in J ) ; dark bluish 

 gi-ey above ; upper breast always 



barred /3. baduis, p. 109. 



6". Smaller and much clearer bluish grey. 

 a". Upper breast becoming uniform 

 with age. . . .y. spheiiurus, p. 112. 

 6". Lower surface of body broadly 

 ban-ed with vinous red . . 8. poli- 

 opsis, p. 110. 

 v. Dull rufous underneath, never so clear 

 as in the other species . . e. polyzo- 

 noides, p. 113. 

 /'. Breast entirely uniform (with a few faint 

 irregular bars in A, cinereus). 

 c^. Lower breast and upper abdomen rufescent. 

 c^. Lower surface of body and thighs vinous 

 chestnut ; under wing-coverts whitish, 



with a distinct tinge of buff soloensis, p. 114. 



cT. Lower surface of body pale rufous 

 mixed with ashy ; thighs white, 

 slightly mottled with greyish ; under 



wing-coverts pure white cucidoides, p. 115. 



d'^. Lower breast and abdomen pure white. 

 e". Ear-coverts ashy grey, or white washed 

 with ashy grey. 

 c*. Tail ashy grey, 

 c'. Sides of chest entirely uniform. 



a*. Upper surface entirely uniform, franciscee, p. 116. 

 6*. Mantle and head delicate bluish 



grey, paler than back poliocephalus, 



d?. Sides of chest with a few irregular p. 117. 



wavy lines cinereus, p. 117. 



d". Tail uniform white novce hollandi<B, 



e^. Larger : wing in S 10'4 inches, in p. 118. 



2 12-6 . . . .a. twvcehollandi(P, p. 118. 

 /". Smaller : wing in S 7 '8 inches, 

 /3. leucosonius, p. 119. 

 f. Ear-coverts jet-black, like rest of head. [119. 



c'. Throat and chest black haplochrous, p. 



f^. Throat and chest white albigularis,^. 120. 



/'". Axillaries pure ashy grey, like the rest of the 



breast and thighs poliogaster,Tp. 120. 



