DRIVING 123 
down-wind side must therefore be well ahead—as at 
Ain the accompanying diagram—before the drivers 
at B have begun to move or have flushed the birds. 
c is the centre of the line of guns to which it is 
desired to drive the birds, and the arrow points in the 
direction of the wind. When once the birds are up 
Fic. 9 
and in full swing down wind, an army would not turn 
them towards the point c. But if while still squatting 
on the ground they hear or see men passing on at A, 
they will, when they rise, push on to c to avoid them. 
If the wind be heavy, there is little fear of their 
breaking out at D; and one judicious driver of ex- 
perience creeping a little ahead of the others on that 
