HATCHLING
No feathers, sometimes hatch down (soft, fuzzy stuff)
Eyes closed
Large abdomen
Legs tucked up against body, unable to stand.
Needs to be in a nest
Can't control body temperature -kept warm by parents
Fed by parents
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NESTLING
Partly feathered, some skin showing
An order nestling would have short feathers partly wrapped
in sheath
Eyes open
May stand but doesn't perch, generally lying on stomach
Needs to be in the nest.
Gradually gains control of body temperature as feathers
emerge
Fed by parents
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FLEDGLING
Fully feathered
Wing and tail feathers are short - not fully grown out
Eyes open
Stands, hops, perches
May be able to fly short distances
Has left the nest and, if put back, will leave again
More afraid of people than younger birds
Still fed by parent
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