620 
AFRICAN GAME ANIMALS 
pursued by man they lie hid in cover during the daytime. 
We found one herd coming to water early in the afternoon 
and another about sunset. They advanced in the fashion 
of most game, keeping in the open with no attempt to hide, 
continually halting and bounding away on false alarms. 
One herd took half an hour in traversing the last three 
hundred yards to the drinking-place; then they drank at a 
shallow place, evidently fearing crocodiles nearly as much 
as leopards. Impalla, like waterbuck, reedbuck, and bush- 
buck, drink frequently—two or three times a day—being 
wholly unable to stand thirst like the species of the plains 
and the desert. 
Some of them on the Athi were infected with ticks, 
which clustered at the bases of the horns. The leopard 
was their chief enemy. They were very shy on" the plains, 
less so in the woods. We did not find them tenacious of 
life, as most African game is said to be; twice individuals 
succumbed to wounds which would hardly have prevented 
a blacktail or a whitetail deer from making off. 
Impalla are abundant about the slopes of Kilimanjaro, 
and are occasionally found in the adjacent desert tracts 
of Taita and the Taru, but are absent from the moist 
coast belt. Westward they are not uncommon along the 
German border as far west as the Victoria Nyanza, but 
their real centre of abundance is the Rift Valley. Both 
Count Teleki and Jackson have found them as far north as 
the Turkwell River, in which region they reach their extreme 
northern limit. The Ankole district in southern Uganda 
represents the northwestern limit of the range of the 
impalla, which is not known to occur farther north in the 
Nile Valley proper. Bohm, who furnished Matschie with 
the material for the description of the equatorial race of 
the impalla, obtained his specimen near Tabora, directly 
south of the Victoria Nyanza and east of the northern shores 
