How are baby puffins born?

Puffling, also called a puffin chicks or baby puffin, are born without any feathers or down, and with eyes that are still closed. The egg's inside are absorbed into the chick's body before hatching. Puffins are born in their burrows and will usually stay there for approximately six weeks before they are ready to leave the nest and go to sea. At three to six weeks old, young puffins (about 115 grams) grow all of their feathers and then leave the burrow. The parents no longer feed them at this point, and they must begin fishing on their own.