What is the scientific name of a Shelduck?

Assuming you meant

• a Shelducks, genus Tadorna, a group of large birds in the Tadorninae subfamily of the Anatidae, a biological family that includes the ducks and most duck-like waterfowl such as the geese and swans

Did you mean?

• a Common Shelduck, a widespread and common duck of the Genus Tadorna, Common Shelduck, a waterfowl species shelduck genus Tadorna
• shelducks, genus Tadorna, a group of large birds in the Tadorninae subfamily of the Anatidae, a biological family that includes the ducks and most duck-like waterfowl such as the geese and swans
• a Tadorninae, a shelduck-sheldgoose subfamily of the Anatidae, a biological family that includes the ducks and most duck-like waterfowl such as the geese and swans, Tadorninae, a shelduck-sheldgoose subfamily of the Anatidae, a biological family that includes the ducks and most duck-like waterfowl such as the geese and swans