Śrīmad-Bhāgavatam · Text 10.21.14
Who is speaking and story frame
प्रायो बताम्ब विहगा मुनयो वनेऽस्मिन्
कृष्णेक्षितं तदुदितं कलवेणुगीतम् ।
आरुह्य ये द्रुमभुजान् रुचिरप्रवालान्
शृण्वन्ति मीलितदृशो विगतान्यवाच: ॥ १४ ॥
prāyo batāmba vihagā munayo vane ’smin
kṛṣṇekṣitaṁ tad-uditaṁ kala-veṇu-gītam
āruhya ye druma-bhujān rucira-pravālān
śṛṇvanti mīlita-dṛśo vigatānya-vācaḥ
O mother, in this forest all the birds have risen onto the beautiful branches of the trees to see Kṛṣṇa. With closed eyes they are simply listening in silence to the sweet vibrations of His flute, and they are not attracted by any other sound. Surely these birds are on the same level as great sages.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.