It is grey and fluffy and can sometimes be found in photos under their parents body.
down
They usually loose their feathers at about 3 Months old.
on baby penguins, it is called down.
Penguins are covered in feathers, not fur. Penguins molt once each year. During this time, the birds lose all of their feathers.
Baby Penguins come out with fur and feathers, as they grow older they shed the furry coat and feathers and get the sleek hide that you see on an average penguin.
They have white down feathers all over.
It looks very puffy and very fluffy. Only baby penguins have down feathers.
Baby ducks are yellow because of a pigment called carotenoids that they get from their diet. This pigment gives their feathers a yellow color until they molt and grow their adult feathers.
This period is called molting. The animals must remain out of the water, because their downy baby feathers are too absorbent: the animals would drown.Once most of the baby down feathers have fallen out, then the animal can enter the water.
Sort of an off white (but some could be considered chartreuse).
in a penguin
not until they are 2years old and until then they have gray fluffy down feathers