- The down of
birds is a
layer of fine
feathers found under the
tougher exterior feathers. Very
young birds are clad only in down.
Powder down is a specialized...
-
closed pennaceous feather. Here,
asymmetrical flight feathers,
bipinnate plumulaceous feathers, filoplumes,
powder down, and
bristles evolved. Some evidence...
- An
ostrich down
feather is an
example of a
plumulaceous feather. Its
rudimentary rhachis with long
flexible barbs and
elongate barbules cannot form vanes...
-
semiplume feathers: a long
rachis with
barbs on
either side.
These are
plumulaceous feathers,
meaning that they are soft and bendable. In birds,
these semiplumes...
- also
known as New
World vultures,
possess unique adaptations in
their plumulaceous feathers that
prevent the ac****ulation of
bacteria and
fungal spores...
- of the wing by
covering where the
flight feathers attach to the bone.
Plumulaceous feathers,
otherwise known as
downy feathers, lack
barbules and hooklets...
-
rachides and vanes);
types of
feathers (e.g., filoplume,
pennaceous and
plumulaceous feathers); and
their growth and loss (e.g.,
colour morph,
nuptial plumage...
- deplumation, deplume, displume, plumage, plume, plumose, plumosity,
plumulaceous, plumular, plumule, plumulose, semiplume,
superplume †plūmula plūmul-...
- in the
feathers of
modern birds. The base of the
feather consists of
plumulaceous barbs which are
unconnected to one
another and
result in a down-like...
- be a flier. Its name
means "Ge Sun's silk bird", a
reference to the
plumulaceous-like body
covering evident in the fossil. The specimen's nickname, "Silky"...
