What is the height and length of a newborn baby puffin?

A newborn puffin chick, also known as a puffling, typically measures about 6 to 8 inches (15 to 20 centimeters) in height and weighs around 1.5 to 2.5 ounces (40 to 70 grams) at hatching. They are relatively small and fluffy, with their size increasing as they grow and prepare to fledge. Pufflings remain in the nest for several weeks before venturing out to sea.