The Nguluka or Siani can be found in Malawi’s Chitipa district, specifically in the Mafinga Ridge and the Matipa Forest in the Misuku Hills. Anyone who sees it dies.
A nguluka is a flying snake that looks like a guineafowl, complete with feathers and wings. In fact, only its fanged head is that of a snake. It makes a crowing call that sounds like “yiio, yiio”.
Ngulukas live in caves and tree branches in the deep forest. Their lairs are strewn with the bones of their victims. These snakes feed on figs and like to roost in fig trees. They are most active at night, especially on moonlit nights when the figs ripen.
Hargreaves, B. J. (1984) Mythical and Real Snakes of Chitipa District. The Society of Malawi Journal, Vol. 37, No. 1, pp. 40-52.