A new Biome, the pond

A new Biome, the pond with a new mob; the duck. it should be similar to the chicken, laying eggs and dropping feathers and raw duck. The pond should be found in Birch-, Oak- and Roofed Forests. There should be lilypads and seagrass. Optionally, you could add a secret chest with moderate loot below the pond under a specific type of block. But if you add it, please keep it a secret like you do with the secret rooms in the structutres.