406 Lieut. C. W. Mackworth-Praed on [Ibis, 



many in the Thika district. The lonj;- crest and white 

 patches ou the wings are very noticeable. I did not see it 

 in the low country. 



Spizaetus hellicosus. 



Falco bellicosus Daud. Traite, ii. 1800, p. 38 [Gt. Namaqua- 

 land]. 



Spizaetus bellicosus C. Grant, Ibis, 1915, p. 245. 



($ . Tsavo River. 10th August. Wing 575 mm. 



Iris yellow; bill black, cere blue ; feet greyish white. 



I saw a pair of Martial Hawk-Eagles on the Tsavo, and 

 was lucky enough to kill one at long range. I never met 

 with it again. 



Hieraaetus fasciatus spilogaster. 



Spizai'tus spilogastcr Bonap. Rev. et Mag. Zool. 1850, 

 p. 487 [Abyssinia]. 



Hiej'aaetus fasciatus Zedlitz, J. f. O. 1910, pp. 374-376. 

 ? . Tsavo River. 27th July. Wing 435 mm. 

 Iris yellow ; bill blackish-horn; legs whitish green. 



1 found this Hawk-Eagle breeding in trees up the Tsavo 

 River. They make a large and conspicuous nest of sticks 

 on the top-fork of a tall tree. I saw three nests occupied 

 and many others empty. This was in late July and early 

 August. I believe the Spanish form, H. f. fasciatus, only 

 breeds in rocks. The one I shot was sitting ou a single, 

 very much addled egg. The bird was in clean adult dress. 



Hieraaetus wahlbergi. 



AquUu wahlbergi Sundev. ffifv. Vet.-Ak. Forh. 1850, 

 p. 109 [Upper Kaffraria]. 



Hieraaetus wahlbergi Heichw. Vog. Afr. i. 1901, p. 581. 

 cJ . Ithanga Hills. 9th October. Wing 418 ram. 



2 ? ad. & iram. Ithanga Hills. 11th October. Wing: 

 ad., 422 mm. ; imm., 410 mm. 



The immature bird is much lighter in colour than the 

 other. 



Iris dark brown ; bill dark, cere yellowish ; feet yellowish. 

 Wahlberg's Eagle was not much in evidence until a grass- 



