Bhagavatapurana 6.9.5

6.9.5

somapīthaṃ tu yat tasya śira āsīt kapiñjalaḥ /
kalaviṅkaḥ surāpīthamannādaṃ yat sa tittiriḥ //

5. That head with which he drank Soma became the kapinjala bird; and that with which liquor was drunk became kalavinka (a bird) and that with which he ate food became Tittiri (a bird).