Enhancing the conservation of Northern Ground Hornbill through habitat assessment, installation of nest boxes, and community awareness

26 Apr 2024 Yankari Game Reserve, Nigeria, Africa Birds | Communities | Education | People

Nguvan Mercy Agaigbe


Other projects

9 Oct 2020

Effects of Burn Severity and Frequency on Northern Ground-Hornbill in a Sudan Savanna Landscape

Human activities including hunting, habitat degradation, intensive cattle grazing, fuelwood extraction, and expanded cultivation are the main causes of documented environmental changes in Sub-Saharan Africa (Thiollay 2006). For cavity nesters like the Northern Ground Hornbill (Bucorvus abyssinicus)- NGHB, the loss of large trees poses a significant challenge to population rebound, even if other threats are mitigated. Historically, the Sudan savanna woodland in West Africa hosted isolated, large baobab trees—ideal nesting spots for these birds. Nonetheless, the region has experienced a significant loss of mesic trees due to substantial reductions in rainfall since the 1960s (Maranz 2009). In the Yankari Game Reserve, remaining baobab trees are predominantly restricted to the Bultu part of the park which records the highest annual poaching activities (personal communication with park managers).

Poachers target the NGHB for various reasons, including the use of its body parts in traditional medicine and cultural practice. (Nikolaus 2011). A prevalent belief is that NGHB's head enhances hunting success and serves as ornamentation when affixed to a hunter's forehead or hat. The NGHB, a "vulnerable" bird species per the IUCN, is found solely in the Sudan-Sahel savanna north of the equator. As a savanna keystone species, its seed dispersal significantly impacts ecological succession (Holbrook and Smith 2000). Anecdotal evidence suggests frequent NGHB sightings in Yankari, covering 2244 km2 and serving as a crucial refuge for the bird and other savanna obligates in the area. Veteran rangers recall documenting significant NGHB numbers in the 1980s and 90s, particularly in the Bultu area of the park, named after the local term for the species. They however admitted difficulty in detecting these birds in recent times. This alarming decline is attributed to habitat loss, poaching, intensive cattle grazing, and loss of large nesting trees.

Our project aims to enhance the conservation efforts for Northern Nigeria's vulnerable Northern hornbill population. The project centres on safeguarding the bird's habitat, providing secure breeding sites through nest box installation, and involving local communities in conservation initiatives, ultimately boosting the Northern Ground Hornbill's chances of survival within the region.

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