The red-flanked duiker (Cephalophus rufilatus) is a species of small antelope found in western and central Africa in countries as far apart as Senegal and Sudan.

Its main habitat is open savannah woodlands[1] and the margins of forests but it also occurs in river basins with elephant grass (Pennisetum purpureum) or thick shrubby vegetation such as caperbushes (Capparis spp.)

They move about while browsing and keep a sharp lookout for possible predators; if startled, they lower their heads and dive into the nearest dense area of vegetation.

[4] The red-flanked duiker feeds on leaves and flowers and the fruits that fall from trees, and also browses on twigs growing within 1 metre (1 yd) of the ground.

Favoured food species include the wild date palm (Phoenix reclinata), the African peach (Nauclea latifolia), the Cape fig (Ficus capensis), the wild bauhinia (Piliostigma thonningii), the adanme (Mucuna flagellipes), the hog plum (Spondias mombin), the barwood (Pterocarpus erinaceus), the mitzeeri (Bridelia micrantha), the wild African black plum (Vitex doniana), the African custard-apple (Annona senegalensis), the leafflower (Phyllanthus muellerianus), the monkey cola (Cola millenii), the ackee (Blighia sapida) and the beechwood (Gmelina arborea).

The newly born juvenile weighs about 1 kilogram (2.2 lb) and quickly makes its way into concealing vegetation, only coming out when its mother returns to nurse it.

[4] The red-flanked duiker is an adaptable species, and the removal of trees by logging and the conversion of its natural habitat into more open savannah and farmland has allowed it to increase its range.