Mahabharata 6.108.8

कङ्का गृध्रा बलाकाश्च व्याहरन्ति मुहुर्मुहुःशिवाश्चाशिवनिर्घोषा वेदयन्त्यो महद्भयम्

kaṅkā gṛdhrā balākāśca vyāharanti muhurmuhuḥśivāścāśivanirghoṣā vedayantyo mahadbhayam

Our plain-language meaning of this verse is waiting for scholar review.