- in dark gray-brown.
Boreal Owls have two
primary moulting phases. The
Prebasic I molt
occurs around the age of two months,
between August and September...
- a
complete body or
prebasic molt
which is
completed in the fall
producing the next
basic or
breeding plumage.
Before the
prebasic molt, many duck species...
-
black and
white veining.
Second and
subsequent prebasic molts (or
postnuptial molts) : the
second prebasic molt
takes place approximately one year after...
-
duller in color.
Their first prebasic molt
occurs within 2
months of
leaving the nest and is a
partial molt.
Their second prebasic molt
occurs at the end of...
- Compare: body down &
natal down.
postjuvenal moult See
prebasic moult.
postnuptial moult See
prebasic moult.
prealternate moult Also,
prenuptial moult (sp...
-
these parts on
juveniles are a
paler hue, yellow-green to yellow. The
prebasic molt
begins in late April–May and
takes about 4 months. The
female usually...
- plumage. When the bird is molting, the molt is
known as a prejuvenal,
prebasic, prealternate, or
presupplemental molt,
depending on
which type follows...
- once
every year as an adult,
following a
complex basic strategy. This
prebasic moult is
completed before courtship and
lasts between 19 and 29 w****s,...
- the legs, feet, beak, and eye ring
become more
distinctly yellow. The
prebasic moult also
begins at this point, with the
white head and body feathers...
-
fledges in
around three w****s and
obtains adult plumage after their second prebasic molt.
There is
little data on the
survival rates and
competition of the...
