What is the meaning of goose in ancient poetry?

1. Poem: Goose Goose, Quxiang Xiang Tiange. White feathers, floating in green water; The red soles of the feet stir the clear water.

-Robin Wang's Ode to Goose

2. Translation:

Goose, bend your neck and sing to the sky. A white feather floats on the green water, and the red sole stirs the clear water waves.