The King’s residence was surrounded by gardens wherein there were varieties of trees brought from the heavenly planets. In those trees there were pairs of sweetly singing birds and almost-mad bumblebees, which made a very relishable buzzing sound.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
उद्यानानि च रम्याणि विचित्रैरमरद्रुमैः । कूजद्विहङ्गमिथुनैर्गायन् मत्तमधुव्रतैः
udyānāni ca ramyāṇi vicitrairamaradrumaiḥ | kūjadvihaṅgamithunairgāyan mattamadhuvrataiḥ
SB 4.9.63