WATERBUCKS AND REEDBUCKS 
511 
on the other hand did they stay in the belt of thick timber 
by the river brink. Their country was the strip of land, 
a couple of miles broad, which fringed this timber belt on 
either side. Reedbuck were scattered through the same 
country, and always sought to escape notice by hiding and 
crouching or sneaking off with bent legs through the tall 
grass. The kob, on the contrary, did not seek to escape 
notice. They were always in plain sight, trusting to their 
senses to warn them of the approach of foes. When they 
ran they occasionally made big bounds in the air, like 
impalla. They were fond of using the ant-hills as lookout 
stations, and it was curious to see a score of them covering 
the top and sides of a big ant-hill, with all their necks 
stretched out as they watched. They are grass-eaters. 
The Uganda kob differs from the typical race by its 
larger size and darker coloration, and from leucotis by the 
absence of the black coat in the old bucks, and the absence 
of wholly white ears. The color of the ears of the bucks 
shows much age variation. In old males of thomasi the 
ears are sometimes quite white with the exception of the 
tips, which are always darker, at least never lighter than 
tawny. From its nearest geographical ally, alurce of the 
west side of the Nile, it is distinguishable by the much 
darker dorsal color, which is due to the abundant suffusion 
of black-tipped hair. The female resembles the male in 
color, but the ears are tawny like the body, never whitish, 
and always with seal-brown tips. 
In the adult male the head and body are ochraceous- 
rufous, overlaid on the rump with black to a slight extent, 
but lightening on the sides and the limbs to ochraceous-buff. 
The cheeks are ochraceous-buff and considerably lighter 
than the forehead and snout. The orbital area is whitish, and 
most pronounced in front of the eye. The backs of ears are 
ochraceous-buff and the tips distinctly darker ochraceous- 
tawny. The base, lower sides, and inside of the ears are 
