La pequeña Lulú 1x14

Lulu a duck follows Lulu home as if it were tame. She decides to keep the duck, until she learns that a clown lost his pet duck. Lulu discovers the duck is missing and sees what looks like roast duck in the oven. Lulu brings the clown another duck, but escorts Lulu home to find his real pet duck had come back after flying in and out the window.