lOS FALCONIB.U. 



white, the head tinged with dull vinous rufous, more distinct on the 

 eyebrow, and occupying the whole of the sides of the face and neck ; 

 wing-coverts a little darker than the back ; quills brown, barred 

 with darker brown, the secondaries uniform with the back, the bars 

 more distinct on the underside of the quills, where the inner web 

 is ochraceous buff; tail-feathers brown, slightly rnfescent on their 

 margins, crossed with six bands of dark brown, the subterminal 

 one rather broader ; under surface of body white, slightly tinged 

 with rufous, and having a narrow line of dark brown down the 

 centre of the throat ; remainder of under surface white, thickly 

 barred with rufous, the bars becoming narrower on the flanks ; 

 thighs pale rufous buff, with narrow rufous bars ; under tail-coverts 

 white ; iinder wing-coverts pale rufous buff, the axillaries whitish 

 with remains of rufous cross bars. Total length 10-7 inches, cul- 

 men 0-75, mng 5-6, tail 4-8, tarsus 185. (Mus. Lugd.) 



Adult female. Similar to the male, but having a more distinct 

 rufous shade on the hind neck. Total length 12-5 inches, wing 6-45, 

 tail 5-7, tarsus 1-9. {Mus. Lugd.) 



Hah. Mayotte. 



Ohs. This species may easily be confounded with the young of A. 

 francesae in barred plumage ; but the male of the latter, when it 

 approaches the present species, has the remains of rufous edgings 

 above, showing that it is a young bird. The full-grown female of 

 A. francescce, when it has a bared under surface and no remains of 

 rufous margins above, can be distinguished from A. brutus by its 

 grey cheeks and by the absence of any rufous shade on the neck, 

 A. brutus may almost always be told by its rufescent thighs. 



14. Astur tibialis. 



Astur tibialis, Verr. J.f. 0. 1861, p. 100; Grmj, Hmid-l. B. i. p. 29 



(1869). 

 Accipiter hartlaubi, Sharpe, P. Z. S. 1871, p. 613 {lapsu). 



Adult (?). Above dark blackish brown, with narrow and almost 

 obsolete rufous edgings to the feathers ; quills blackish brown, with 

 the same obsolete rufous edgings ; under surfece of wing much 

 lighter and inclining to pale rufous, with very distinct black cross 

 bars and tips to the feathers ; tail very dark brown, barred across 

 with blackish brown and pale rufous, the outer feathers quite plain, 

 and all the tail-feathers tipped with pale rufous ; throat white ; rest 

 of under surface of body rust-colour, lighter and more inclining to 

 white down the centre of the body, the flanks very distinctly marked 

 with diamond- shaped spots of blackish brown ; legs deep rust- 

 colour, with indistinct black transverse bars ; under wing-coverts 

 pale rust-colour, with a few blackish spots on the lower feathers 

 and axillary plumes ; bill black, yellowish at gape and at base of 

 lower mandible ; legs deep yellow, claws black. Total length 

 13-7 inches, culmen 0-9, wing 7-5, tail 7-4, tarsus 2-3. (Mus. G. E. 

 Shelley.) 



Hob. W. Africa, from Senegambia to Cameroons. 





