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244 BIRDS OF SOUTH AFRICA. 
229. SaxIcoLa CASTOR. Hartlaub’s Grey Wheat-ear, 
In this species the second primary is not emarginate, and it 
belongs to the same group as the two foregoing, as it has the rump 
white, but it is entirely cinereous underneath, in which respect it 
rather resembles S. pollua. 
It was procured at-Colesberg by Mr. Ortlepp. Messrs. Blanford 
and Dresser also give Eland’s Post as a locality, but on examining 
Mr. T. C. Atmore’s specimen in the British Museum we believe it 
to be referable to some other species, and the authors mentioned 
also appear to have changed their mind, as the name has been 
erased, and our original determination of its being S. monticola is 
restored: it is therefore doubtless by an accident that the locality 
has remained standing in their paper. They describe the species as 
follows :— 
Adult male——Upper parts dark ashy grey ; rump and upper tail- 
coverts white; wing and four central rectrices dusky black ; outer 
rectrices white at the base with a black tip, which is much broader 
in the fourth from the outside than in the others; underparts very 
little paler than the back, fading a little on the abdomen; axillaries 
and under wing-coverts of the same colour as the breast. Culmen, 
0:9; wing, 4°3; tail, 3°05; tarsus, 1:3. 
Fig. Blanf. and Dresser, P. Z. 8. 1874, pl. xxxviii. fig. 2. 
230. SAxIcoLA POLLUX. Sickle-winged Grey Wheat-ear. 
A very striking species, easily distinguishable by its emarginated 
second primary, as in S. sinwata, and by its uniform upper surface, 
the absence of the white rump being a remarkable characteristic. 
It was first procured by Mr. W. Atmore at Traka, and afterwards at 
Colesberg by Mr. Ortlepp. Messrs. Blanford and Dresser record 
specimens from Beaufort. 
General colour brownish-grey; chin, flanks, belly, and sides of 
rump whitish ; vent white; primary quills brown, secondaries the 
same edged with whitish ; tail-feathers nearly black, the outer webs 
of all, except the four centre feathers, more or less white; eyelids 
white ; bill and legs black. The female resembles the male. 
Length, 7” 8’’; wing, 4’’; tail, 2’” 9’”’, 
Fig. Blanf. and Dressery P. Z. S. 1874, pl. xxxviii. fig. 1. 
