Bukavac (Serbo-Croatian pronunciation: [bǔːkaʋat͡s]) is a demonic mythical creature in Slavic mythology. Belief in it existed in Syrmia.
Bukavac was sometimes imagined as a six-legged monster with gnarled horns. It lives in lakes and pools, coming out of the water during the night to make a loud noise (hence the name: buka – noise),it would jump onto people and animals, and strangle them.