closeup black-necked swan (cygnus melancoryphus) face with a red knob near the base of the bill.

animal baby background base beak beautiful beauty bill bird black blacknecked blue blurred chile closeup copy cygnus face feather green knob lake melancoryphus melanocoryphus nature neck necked one ornithology outdoor plumage red space sunlight swan swim taipei taiwan wallpaper water waterfowl white wild wildlife zoo