Mbh 13.14.9a

"'"'My mother continued, "Bhava assumes the forms of Brahma and Vishnu and the chief of the celestials of the Rudras, the Adityas, and the Aswins; and of those deities that are called Viswadevas. He assumes the forms also of men and women, of Pretas and Pisachas, of Kiratas and Savaras, and of all aquatic animals. That illustrious deity assumes the forms of also those Savaras that dwell in the woods and forests. He assumes the forms of tortoises and fishes and conches. He it is that assumes the forms of those coral sprouts that are used as ornaments by men. He assumes also the forms of Yakshas, Rakshasas and Snakes, of Daityas and Danavas. Indeed, the illustrious god assumes the forms of all creatures too that live in holes. He assumes the forms of tigers and lions and deer, of wolves and bears and birds, of owls and of jackals as well. He it is that assumes the forms of swans and crows and peacocks, of chameleons and lizards and storks. He it is that assumes the forms of cranes and vultures and Chakravakas. Verily, he it is that assumes the forms of Chasas and of mountains also. O son, it is Mahadeva that assumes the forms of kine and elephants and horses and camels and asses. He assumes also the forms of goats and leopards and diverse other varieties of animals. It is Bhava who assumes the forms of diverse kinds of birds of beautiful plumage. It is Mahadeva who bears the forms of persons with sticks and those with umbrellas and those with calabashes among Brahmanas.[43] He sometimes becomes six-faced and sometimes becomes multifaced. He sometimes assumes forms having three eyes and forms having many heads. And he sometimes assumes forms having many millions of legs and forms having innumerable stomachs and faces and forms endued with innumerable arms and innumerable sides. He sometimes appears surrounded by innumerable spirits and ghosts. He it is that assumes the forms of Rishis and Gandharvas, and of Siddhas and Charanas.