Valmiki Ramayana Yuddha Kanda Sarga 53 Shloka 15

तदा then, घोराः fierce, मृगाः animals, रक्षसाम् Rakshasas, निधनम् indicated, व्याहरन्त destruction, समापतन्तः fell down, योधास्तु in war, तत्र there, दारुणम् dreadful, प्रास्खलन् while going.

Then the fierce animals indicated the death of Rakshasas, who were going deluded with war and fell down.