WOODPECKEKS 



33 



Its tunnel usually runs straight into the bank for about 

 two feet, then turns to the right or left, and ends in a 

 dome-shaped cavity about 6 inches in height. The bird 

 usually chooses a point in the bank about a foot or 18 



FIG. 20. Knysna Woodpecker. 



inches below the top, where the soil is moist from surface 

 drainage and consequently easier to excavate. 



The Ground Woodpecker (Geocolaptes olivaceus) is 

 olive-brown above narrowly barred with white ; rump, 

 throat and breast washed with crimson ; remainder of 

 under parts resembling the back. 

 3 



