Draw a small circle for the head
Draw a larger oval for the body
Connect the head and body with short curved lines for the neck
Add a curved line for the beak
Draw a small eye on the head
Add a wing shape on the side of the body
Draw two legs under the body
Add webbed feet at the bottom of the legs
Sketch a short tail at the back
Outline the duck with smooth curved lines
Erase extra sketch lines
Add simple details like feathers or water ripples if desired