By William H. Burt
Descriptions of 380 species comprise measurement, weight, colour, markings, variety of enamel, habitat, conduct, and comparisons with related species. fantastic colour illustrations and line drawings express 230 animals. diversity maps in addition to photographs of skulls and drawings of animal tracks, dens, nests, and burrows around out the wealth of data given in "the most sensible normal advisor to all of North America" (Peter Warshall, complete Earth Review).
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Additional info for A Field Guide to Mammals: North America north of Mexico (Peterson Field Guides)
There may be several different colonies occupying one rocky outcrop. Distribution in Tanzania The Rock Hyrax is restricted to a narrow area of northern Tanzania. It occurs in Serengeti NP, Maswa GR, western Loliondo and the Yaeda Valley. It is not known from Ngorongoro CA although may occur in the Kakesio Hills. There are records from the 1970s from northern Shinyanga and Musoma Districts, although the current status of the species in these areas is not known. Its distribution in the Lake Natron–Kilimanjaro area is unclear, with only one sight record from the lower western slopes of Mount Kilimanjaro.
Indd 44 31/01/2014 14:11 Guereza Black-and-white Colobus and the Ng’arwa and Itira Forests bordering Kenya. They are absent from the forests of Ngorongoro and the mountains west of Mount Meru. Guereza Black-and-white Colobuses were introduced onto Rubondo Island during the 1960s and a small breeding population has now become established. Population size and conservation status There are no population figures for this species, although it is very common in both Arusha and Kilimanjaro NPs. In the forests of Mount Kilimanjaro, it is most common on the north and western slopes between altitudes of 1,800–2,300 m (5,900–7,500 ft), but less so on the southern slopes although very common on the Umbwe route.
Ecology and social behaviour Restricted to montane and submontane forest in the Udzungwa Mountains. It is insectivorous and diurnal and, like other species in this genus, probably forms monogamous pairs, although it typically forages and travels alone. Fallen leaves are used to construct large leaf mounds approximately 1m (3ft) wide, which it uses to shelter at night. 30 cm (12") 24–26 cm (9–10") 655–750 g (23–26 oz) ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Where to look The Grey-faced Elephant-shrew can be seen along trails in the Ndundulu and Luhomero Forests, where walking surveys suggest an encounter rate of approximately one animal every 3·3 hours of walking .