Mbh 6.100.3a

“Then the kings of thy array, O monarch, exerting themselves at their best, accompanied by their forces, and placing Bhishma at their van, rushed against the Parthas in battle. Similarly the Pandavas also, O king, headed by Bhimasena, and desirous of victory in battle proceeded, for battling with Bhishma. With leonine roars and confused cries, blowing their conches Krakachas, and cow-horns, beating their drums and cymbals and Pandavas in thousands.[464] And uttering terrible shouts, the Pandavas advanced to battle. With the din of our drums and cymbals and conches and smaller drums, with loud leonine roars, and other kinds of shouts, ourselves also, replying to the cries of the foe, rushed against him with great impetuosity, inflamed with rage. Those sounds mingling with one another, produced a tremendous uproar. The warriors then, of the two armies, rushing at one another, began to strike. And in consequence of the din produced by that encounter, the earth seemed to tremble. And birds, uttering fierce cries, hovered in the air. The Sun, radiant as he was when he had risen, became dimmed. And fierce winds blew, indicating great terrors. Frightful jackals wandered, yelling terribly, O king, and foreboding an awful carnage at hand. The quarters seemed, O king, to be ablaze, and showers of dust fell from the blue. And a shower fell there, of pieces of bones mixed with blood. And tears fell from the eyes of the animals which were all weeping. And filled with anxiety, O king, these began to urinate and eject the contents of their stomachs. And the loud shouts of battle, O bull of Bharata’s race, were rendered inaudible by the louder cries of Rakshasas and cannibals. And jackals and vultures and crows and dogs, uttering diverse kinds of cries, began, O sire, to fall and swoop down on the field. And blazing meteors, striking against the Sun’s disc, fell with great celerity on the earth, foreboding great terrors.