The Kanana Heronry lies in the central region of the Okavango Delta, within the wider floodplains which form the headwaters of the Xudum River and forms part of Ker & Downey Botswana’s private Kanana concession making it a great Botswana birding safari.
The area is typical of this region of the Okavango and comprises open shallow floodplains covered with a mosaic of lily pads, cyperus grasses and assorted floating sedges with small crystal clear channels and pools of open water. Scattered randomly throughout the area are dense ‘islands’ of varying sizes, covered in gomoti figs (Ficus verruculosa) mixed with waterberry trees (Syzygium guineense) and edged by papyrus reeds (Cyperus papyrus).
These ‘islands’ are used extensively for both breeding and roosting of several species of birds, with breeding activity starting in mid-July with the arrival of Pink-backed Pelicans, closely followed by the Cormorants, Darters and White Egrets. Thereafter the Marabou storks arrive, followed by Yellow-billed Storks, Sacred Ibis and Grey Herons. In addition to these species, there have been documented sightings of Rufous-bellied Herons with fledged chicks and small numbers of Black-crowned Night Herons using the breeding site, though it not been confirmed they are actually breeding within the heronry.
The main breeding locations consist of two main large ‘islands’ of roughly 10,800 and 20,000 square metres, as well as numerous smaller ‘islands’ predominantly used by Marabou, Pink-backed Pelican and some Yellow-billed Storks. A recent visit by researchers to the heronry for the purpose of a survey led them to state, “this heronry is the most dynamic and vibrant heronry that we have ever visited in Botswana” and that “this site is one of the most important breeding sites in Southern Africa.”
The researchers estimated at the time of the survey, well in excess of 5,000 birds of ten species were using the heronry for breeding or roosting purposes. Of special significance is the breeding presence of the Pink-backed Pelicans and Marabou storks.
Listed below is breakdown of the species identified by researchers at the Kanana Heronry, in their order of conservation importance.
- 1. Pink-backed Pelicans – Classified as vulnerable in Southern Africa and breeding has been recorded in only a handful of places in Southern Africa.
- 2. Marabou Storks – Classified as near threatened in Southern Africa. 298 active nest sites were identified. This species has a small breeding population in Southern Africa and this site is probably one of the largest one in the region.
- Yellow-billed Storks – This species was nesting in several sites throughout the heronry.
- Sacred Ibis – This species was nesting in small numbers on the larger of the two main large ‘islands’
- Grey Herons – This species was nesting in small numbers in both of the main ‘islands.’
- Western great Egrets
- Darters – A handful of birds were seen sitting in the dense areas of the two main “Islands”. No sign of any actual breeding could be seen and from what we were advised by the guides we believe that the Darter breeding had been completed for this season.
- Reed Cormorant – No sign of breeding was noted but each evening, huge numbers of these birds flew into roost.
- Rufous-bellied Heron
As well as the species noted above, the area is also home to other ‘Okavango specials’ species including Pel’s Fishing Owl, Slaty Egret, Lesser Jacana, Greater Swamp Warbler, Chirping Cisticola, Luapula Cisticola, Swamp Boubou, and Hartlaub’s Babbler to name but a few.
You can stay at Ker & Downey’s excellent Kanana Camp on World Discovery’s 7 day Okavango Delta itinerary. An experienced not to be missed!