Valmiki Ramayana Bala Kanda Sarga 74 Shloka 13

पक्षिमुखात् from the mouth of these birds, च्युतम् released (foretells), दिव्यम् of celestial nature, उपस्थितम् befallen, घोरम् dreadful, भयम् fear, एते these, मृगा: beasts, प्रशमयन्ति restoring peace, अयम् this, सन्ताप: grief, त्यज्यताम् may be abandoned.

The dreadful cries from the mouths of birds foretell an event of celestial nature likely to befall but the movements other of deer indicate restoration of peace. Therefore do not grieve.