Variant texts have bwlbwl, i.e. "nightingale", but M. Geller (OLA 17 p. 105) has suggested that this instance should be understood rather as a variant of Akkadian barbaru "wolf", an opinion shared by C. Müller-Kessler in Or 80 p. 226. We find the suggestion unlikely. Compare the phonetic change in JBAgeon form brbl from blbl.