- the
rectrices of the tail.
These feathers may vary
widely in size – in fact, the
upper tail
tectrices of the male peafowl,
rather than its
rectrices, are...
- well-developed
rectrices used in maneuvering. The
central pair of
these attach directly to the pygostyle, just as in Confuciusornis. The
other rectrices of Ornithurae...
-
presence of
eumelanosomes in the
preserved tail feathers. The
paired central rectrices are dark,
while the
smaller feathers are non-iridescent,
likely grey....
- with S. n. latirostris.
Extensive white edging on
primary and
tertial rectrices. S. n.
latirostris Bolivia and
northwest Argentina.
Sometimes considered...
-
Juvenile bird at
Samburu National Reserve in
central Kenya – it has rufous-tawny
chest plumage, and its
outer rectrices lack the
streamers of
adult plumage....
-
feathers (the boat-billed
heron has only nine), 15–20 secondaries, and 12
rectrices (10 in the bitterns). The
feathers of the
herons are soft and the plumage...
-
length of
about 22 cm (8+3⁄4 in),
although this
includes their elongated rectrices. They are colourful,
being mainly strongly iridescent golden and crimson...
- Lish, J.W. (2006). "Thinking
about feathers:
adaptations of
golden eagle rectrices".
Journal of
Raptor Research. 40 (1): 1–28. doi:10.3356/0892-1016(2006)40[1:TAFAOG]2...
-
refers to the con****uous
white tips on the
central rectrices of the males. As the
central rectrices are
shorter than the outer, it
appears as a
large white...
-
begin to shed
before the
rectrices. Generally, the
upper tail
covers begin to shed first.
Certain birds lose some
rectrices by the end of the
third w****...
