One verse

Srimad Bhagavatam 3.23.20

3.23.20

हंसपारावतव्रातैस्तत्र तत्र निकूजितम् । कृत्रिमान् मन्यमानै: स्वानधिरुह्याधिरुह्य च ॥ २० ॥

hamsa-paravata-vratais tatra tatra nikujitam krtriman manyamanaih svan adhiruhyadhiruhya ca

hamsa
of swans
paravata
of pigeons
vrataih
with multitudes
tatra tatra
here and there
nikujitam
vibrated
krtriman
artificial
manyamanaih
thinking
svan
belonging to their own kind
adhiruhya adhiruhya
rising repeatedly
ca
and.

Here and there in that palace were multitudes of live swans and pigeons, as well as artificial swans and pigeons so lifelike that the real swans rose above them again and again, thinking them live birds like themselves. Thus the palace vibrated with the sounds of these birds.