BUSTARDS 129 



This bird is confined to the Cape Colony, being 

 replaced north of the Orange Kiver by the White-quilled 

 Korhaan (0. afroides), which closely resembles the fore- 

 going bird, but has the primary wing feathers white on 

 the inner web, only the tips being black ; quills white 

 below, whereas they are black in afra. The females of 

 both species are without the black and white variegations. 

 The White-quilled species ranges from the Northern 

 Cape Colony to the Transvaal. 



Both birds are usually found in pairs on the flats, 

 where their harsh croaking call may be heard at almost 

 any time of the day. They are not easily located in the 

 grass except when the male protrudes his black head 

 above the level of the grass ; when flushed he flies up 

 with a loud cackle ; they afford good sport and are good 

 eating. 



The Vaal Korhaan (0. vigorsi) is ashy-grey above, 

 shaded with pink and speckled with dark brown ; below 

 paler with a beautiful pink sheen, which is seldom seen 

 in the prepared skin, as it fades after death. 



The White-necked Paauw (Otis ludwigii) is larger 

 than any of the Korhaans, and is distinguished from 

 the Stanley Paauw (0. caff r a) by the arrow-shaped 

 markings of yellowish on the back, and by the mottled 

 buff cross bands on the tail ; the latter bird is without 

 the arrow-shaped spots of sandy buff, and has the tail 

 cross-barred with white. 



In the Brandfort District, Orange River Colony, the 

 latter is fairly common, being found on the flats singly 

 or in parties of three to seven individuals. When dis- 

 turbed they fly up with a loud croaking call quite unlike 

 that of the Korhaans. 

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