The Tale of the Bodhisatta and the Naga King
…discretion, good fortune attended
him and he became king of the birds, taking up his abode with his subjects
in a giant tree which stretched its leafy branches over the waters of a lake.
And all these birds, …
In Benares, during Brahmadatta's reign, the Bodhisatta is born as a bird and becomes king of the birds in a giant tree by a lake. The lake is home to Canda, the Naga King, who is angered by the birds