kākaḥ kṛṣṇaḥ pikaḥ kṛṣṇaḥ
kākaḥ kṛṣṇaḥ pikaḥ kṛṣṇaḥ ko bhedaḥ pika-kākayoḥ |
vasanta-samaye prāpte kākaḥ kākaḥ pikaḥ pikaḥ ||
(Unknown source)
“A crow is black, and a cuckoo is black. What is the difference between a crow and a cuckoo? When spring time arrives, a crow is a crow, a cuckoo is a cuckoo.”