Valmiki Ramayana Kishkindha Kanda Sarga 1 Shloka 28

पादपाश्चेमे these trees, दात्यूहरतिविक्रन्दैः by the cackles of swamphens, पुंस्कोकिलरुतैरपि and also by the voices of the male cuckoos, मम to me, अनङ्गप्रदीपना kindling my passion, स्वनन्ति making sounds.

These trees seem to enkindle my passion through all sorts of sounds like the loud cackle of swamphens and the sweet warble of the male cuckoos.