Common Reedbuck Facts: The Whistling Antelope of East Africa’s Floodplains
The common reedbuck produces a sharp, penetrating whistle when alarmed — a call audible for 200 metres across open floodplain. This whistle is the species’ most distinctive characteristic in the field. A startled reedbuck launches into a bounding run with the head held high, the rump patch flashing white with each leap, and the whistle call repeating at each landing. Watching a reedbuck bound across a papyrus margin in the early morning light — whistle-calling with each stride — delivers one of East Africa’s most distinctive medium antelope encounters, particularly in Uganda where the species reaches its highest East Africa densities.
What Is a Common Reedbuck?
The common reedbuck, Redunca arundinum, is the largest of Africa’s three reedbuck species. Adults weigh between 57 and 95 kilograms. Shoulder height reaches 65 to 95 centimetres. Only males carry horns — curving strongly forward and upward at the tips in a distinctive hook shape, reaching 25 to 45 centimetres. This forward-curving hook is the most reliable horn characteristic separating the common reedbuck from the bohor reedbuck and mountain reedbuck in the field. The coat is fawn to brown-grey on the back with white underparts. A distinctive bare, circular patch of dark skin below each ear — the subauricular gland — is present, similar to the oribi’s gland but less prominent. The rump carries a white patch that flashes during the bounding alarm run.
Reed and Grassland Habitat
Common reedbucks require tall grass, reeds, or papyrus for cover. Floodplain grassland, reed marsh margins, riverine tall grass, and the edges of papyrus beds all suit their requirements. They do not enter dense bush or forest and avoid very short open grass. The tall grass cover provides the concealment that reedbucks rely on when threatened — the animal lowers into the grass and freezes rather than running immediately, relying on concealment first and the alarm-run only when the threat closes to within 20 to 30 metres.
Common reedbucks depend on water. They drink daily and maintain home ranges within 5 kilometres of permanent water. Floodplain environments that provide both water and tall grass cover simultaneously represent the ideal habitat. Seasonal flooding that maintains grass height through the dry season allows year-round residency in areas that would otherwise be too dry for a water-dependent antelope.
Social Structure and Territory
Common reedbucks live in pairs or small groups of three to five animals — a territorial male, one or two females, and their offspring. The male holds a territory of 20 to 60 hectares marked with preorbital gland secretions and dung middens at boundary points. Territory size correlates with habitat quality — smaller territories in productive floodplain grassland, larger ranges in lower-quality drier grassland. Both sexes use the whistling alarm call, though males produce it more frequently as part of territory advertisement and threat communication.
Range in East Africa
Common reedbucks reach their highest East Africa densities in Uganda’s floodplain grasslands — Queen Elizabeth National Park’s Kasenyi plains and the Lake George floodplains hold substantial populations. Tanzania’s Selous-Nyerere, Ruaha, and the floodplains of the Rufiji River system support common reedbucks in the tall grass margins. Kenya holds fewer common reedbucks than the other two species — the Maasai Mara’s long-grass margins and Amboseli’s swamp edges produce occasional sightings.
Plan Your Safari
Uganda’s Queen Elizabeth National Park produces the most reliable common reedbuck encounters in East Africa. The Kasenyi plains game drives in the early morning — when reedbucks are actively grazing in the tall grass margins before the heat of the day — deliver consistent sightings. Tanzania’s Selous-Nyerere boat safaris along the Rufiji River produce reedbuck sightings on the tall-grass riverbanks during morning river transects. A vehicle stopping quietly at the edge of tall floodplain grass and waiting for a reedbuck to emerge to graze produces the best close-range observation conditions.
African Wild Trekkers designs Uganda and Tanzania safari itineraries through the best floodplain antelope habitats in East Africa. Contact us to plan a safari exploring the full diversity of East Africa’s grassland and wetland antelope community.
