Once hatched, infants are highly altricial, often having little to no downy feathers.

Juveniles resemble adults, with the exception of some downy feathers on the head.

Long downy feathers covered almost the entire head and neck, torso, upper legs, and the first half of the tail.

Inside, it lines the nest with more than 2,000 downy feathers to insulate the nest.

They are covered with downy feathers that soon grow to adult feathers after hatching.

Other side-effects can include early osteoporosis, skin that has lost its bloom and looks grey, and downy hair, more usually found on premature infants.

Periods stop and there's often downy hair growth on the face or body.

Fine, downy hair grew across my back, arms and legs.

These usually consist of one leaf bud and two leaves covered in fine, downy hair.

Here, large annual red poppies parade above green foliage, the buds of unopened flowers gently glowing as their downy hairs are backlit by the sun.