Reservoirs of waters produce sounds similar to those of cows and bulls; that is a sign of defeat to the army of the son of Dhritarashtra.
उदपानाश्च नर्दन्ति यथा गोवृषभास्तथा। धार्तराष्ट्रस्य सैन्येषु तत् पराभवलक्षणम्॥