Birds. 287 



'Buteo dtsertorum. Bill and cere yellow ; eyes rod ; liead, 

 neck, back, and belly, ferruginous red; the latter with dashes 

 of black; throat, •)reast, and under tail coverts greyish white. 

 Primarj quill feathers black. Tail ferruginotis red above; 

 greyish white with indistinct transverse bands, beneath. Legs 

 and toes yellow ; claws black. Smaller than Batco Jackal. 



Inhabits South Africa, — rare. 



Falco desertorum, Daud. Shaw, Lath. Le Rougri, LeVaill. 

 Ois. d' Afriq. pi. 17. 



Genus Butaetes. Lessoyi. 



Bill slender, arched from the bass; nostrils oblique; xoinrjs 

 nearly as long as the tail, fourth feath::r the lonyest ; tarsi 

 feathered to the toes. 



Butaelus buteo, Lesson. Over each eye a i. arrow black 

 Btripe ; head, neck, breast, anterior part of bellv, and legs, 

 white, with longitudinal brown stripes, largest on the sides of 

 breast and belly ; interscapulars, scapulars, and shoulders, 

 brown, margined with rufous or white ; back nearly an uniform 

 brown ; upper tail coverts white, dashed with brown ; centre of 

 belly and flanks dark brown, variegated with rufous or tawny 

 white ; hinder portion of belly and under tail coverts an uniform 

 dull white. Primary wing feathers brown, both \anes towards 

 quills white ; secondaries brown, inner vanes white towards 

 quills; all the feathers obscurely tipt with dusky white. Tail 

 white towards base, grey-brown towards extremity, witli an in- 

 distinct dark band immediately behind the tip, which is dull 

 white. Bill dark horn-colour; the base of lower mandible, 

 cere, and toes, yellow ; claws black. 



Inhabits South Africa and Europe. 



Falco lagopus, Grael. Buse Gantee, Le Vaill. Ois. d" Afriq. 

 pi. 18, 



'Butaetes Lessonii, Smith. Above brown, the shoulder 

 feathers margined with brown-white ; cars and space behind 

 base of lower mandible brown-black ; under parts while ; the 

 breast and anterior part of belly streaked with brown-black. 

 Primary wing feathers black-brown, the inner vanes towards 

 quills white, secondaries with blackish transverse bands on 

 inner vanes, and all tipt with white ; insides of shoulders white, 

 spotted with black. Tail nearly even, the feathers black- 

 brown, variegated with narrow waved irregular bars of a darker 

 tint, and all tipt with obscure white. Bill bluish black ; cere 

 and toes yellow. Length eighteen inches. 



Young. — Cere and toes greenish yellow ; head and back of 

 neck light brown, feathers margined with nifous ; iiifersrapu- 



