Mahabharata 3.214.9

3.214.9

tasmādetadrakṣyamāṇā garuḍī saṃbhavāmyaham |
vanānnirgamanaṃ caiva sukhaṃ mama bhaviṣyati || 9 ||

Markandeya continued, 'Then Agni, filled with great joy and delight, married Swaha in the guise of Siva, and that lady joyfully cohabiting with him, held the semen virile in her hands. And then she thought within herself that those who would observe her in that disguise in the forest, would cast an unmerited slur upon the conduct of those Brahmana ladies in connection with Agni. Therefore, to prevent this, she should assume the disguise of a bird, and in that state she should more easily get out of the forest.