34 
‘B. Sides of crown uniform with crown itself; no 
distinct red nape band; total length under 
20 in. 
+*66. 
66a. 
66b. 
2 A. hilgerti Erlanger (J. f. O. 1904, p 173) is, I believe, a melanism of this form. 
Astur tachiro tachirvo (Daud.), Traité, ii., 
p- 90 (1800). [ex. Levaillant—Pays d’Au- 
teniquoi. ] 
African Goshawk. 
Wing ¢ 215, 2 235 mm. ; above brownish 
or slate ; tail with about 3 darker bands ; 
below white, barred with dark rufous brown 
Astur tachiro benguellensis subsp. nov. [9 
Kabisombo R., Quilengo, Benguella, Feb. 2, 
1895, W. J. Ansorge, type in Tring Mus.] 
Angolan Goshawk. 
Much larger; wing 9 260, tail 230 mm. ; 
more heavily barred below and on under 
wing-coverts, with no rufous wash. 
Astur tachiro sparsimfasciatus Reichen., 
Orn. M.B., iii., p. 97 (1895). [Zanzibar.] 
Zanzibar Goshawk. 
Wing 248-260 mm. ; below lighter ; cross 
bands more distinct; no bars on under 
wing-coverts. 
Astur tachiro nyans@+ Neumann, Orn. M.B. 
x., p. 1388 (1902). [Fort Portal, Victoria 
Nyanza.] 
Uganda Goshawk. 
Smaller ; wing ¢ 210, 2 246 mm. ; stripes 
below brownish black, wing-coverts barred. 
S. Africa (Cape 
Colony, Natal, 
E. Transvaal). 
Angola. 
Zanzibar Is., 
N. & W. Coasts 
of Victoria 
Nyanza ; 
(Uganda). 
