Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Shortly after this episode, Rhody came and stood about 2 feet from
my face and preened. He pulled out 15 body feathers while I watched
and stripped off the filmy sheathes of new feathers by drawing them t
between the upper and lower mandibles. He also rubbed himself with o
oil from his preen gland.
The bottoms of his toes are so well padded that his claws do
not touch the floor when he stands on it. One rear toe on eachfoot
foot curves upward, that is, the concave side of the curve is on the
on each foot
upper side. Both rear toes^look weak , and probably are.
His eyes are very interesting . As recorded, they are brown and
have lashes on the upper lids. They are capable of considerable
movement, so that the bird can shift his gaze, and habitually does,
over a fairly large field without moving his head.
The pupil is surrounded by a narrow circle of brassy yellow. It
appears to be slightly eccentric to the pupil, but this aspect may
be due to the fact that the ring is somewhat narrower in front.
in diameter
This ring expands and contracts with the pupil, but I can not see
that its width changes, though I have suspected that it may be a
couple wider with contracted pupil.
The pupil normally appears black, but when the bird's head is
in the shadow and the surroundings are brilliantly illuminated by
the sun, they are a coppery red. I suppose this is his "eye-shine".
The colors above mentioned have not been checked with standard charts.
The upper lid does not appear to be capable of voluntary movement,
is
as the case with the thrashers and the flickers, but when the eyes
are rolled downward, it "follows".
Normally the orbit is practically circular, but the bird fre-
quently "narrows" its eyes, so that it is not always circular. The
eyes. also, have slight corners, imparting a somewhat human charac-
ter.
Again, some of the "white" of the eye shows beyond the iris,