380 



FALGONTD^: 



POLYBOROIDES 



554. Polyboroides typicus. Harrier Hawk. 



Polyboroides typicus, Smith, S. Afr. Quart. Journ. i, p. 107 (1830) ; id. 

 Illus. Zool S. Aft: Aves, pis. 81, 82 (1843); P. L. Sclater, P.Z.S. 

 1863, p. 162 ; Layard, B. S, Afr. p. 32 (1867) ; Gurney, Ibis, 1868, 

 p. 146; Sliarpe, Cat. B. M. i,' p. 48 (1874); id. ed. Layard' s B. S. 

 Afr. pp. 9, 795 (1875-84) ; Gurney, Ibis, 1875, p. 221 ; Butler, Feilden, 



FIG. 131. Foot of Polyboroides typicus. x jf. 



and Reid, Zool. 1882, p. 128 [Newcastle] ; Fleck, Journ. OrnitJi. 1894, 

 p. 292 [Gt. Namaqualand] ; Shelley, B. Afr. i, p. 153 (1896) ; Wood- 

 ward Bros. Natal B. p. 140 (1899) ; Alexander, Ibis, 1900, p. 438 

 [Zambesi] ; Reiclienow, Vog. Afr. i, p. 531 (1901). 



Polyboroides radiatus (nee Scop.), Gurney, Ibis, 1859, pp. 153, 237 

 [Natal] ; id. Descrip. Cat. Rapt. Bds. p. 12 (1861) ; id. Ibis, 1862, 

 p. 35. 



Description. Adult male. General colour above, slaty-grey, 

 some of the feathers of the back of the head elongated to form 



