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1
Records of the Australian Museum
and broad margins to the tips of the under tail-coverts, these parts being scarlet.
Instances of almost total, and of partial xanthochroism are shown in three
examples of the Red-rumped Parrakeet (Psephotus hcematonotusj, procured ...
Xanthochroism, mostly in originally red or orange feathers ; when the feathers are
yellow instead of green, this may possibly be a reversional step or a case of
arrested development because of the absence of the green-making
superstructure.
Alfred Newton, Hans Gadow, Richard Lydekker, 1896
Dr. Hartert makes some interesting remarks about the moulting of this species.
Platycercus eximius (Shaw) ; North, Rec. Austr. Mus. v. pp. 265 (xanthochroism),
267 (erythrism) (1904). Platycercus mastersianus Ramsay ; Salvad. Cat. B. xx. p.
has been adopted by the U.N. conference on the 'Human Environment' to mark
the beginning of the first conference and as a means of focussing attention on
national and world environment problems. i xanthism (xanthochroism) a colour ...
These include melanism (Gross, 1965a), albinism (Ross, 1963; Gross, 1965b),
erythrism, xanthochroism (Harrison, 1963), and structural changes. All types are
probably widely distributed and appear to be under simple genetic control ...
6
Ornithology in Laboratory and Field
Melanism, Erythrism, and Xanthochroism These are variations in plumage color
caused by either excessive amounts of pigments or the absence of certain
pigments. (See “The Coloration of Feathers”) pages 42—47, for information on
the ...
Olin Sewall Pettingill, Jr., 1985
7
Birds at Your Feeder: A Guide to Feeding Habits Behavior ...
Lemony-yellow variants are fairly common in these and many other finches, a
genetically based condition known as xanthochroism. A Purple Finch's broad diet
includes seeds from weeds and a wide variety of deciduous trees. Insects are ...
Erica H. Dunn, Diane L. Tessaglia-Hymes, Cornell University. Laboratory of Ornithology, 2001
8
Sphecid Wasps of the World: A Generic Revision
An interesting and difficult problem facing students of Bembecinus is the
phenomenon of xanthochroism in certain species. Arnold (1945) illustrated the
range in males of the Madagascan mirus from nearly all black to nearly all yellow,
the ...
Richard Mitchell Bohart, Arnold S. Menke, 1976
9
The Florida Field Naturalist
Following the definition in the glossary of Van Tyne and Berger (1959),
Richardson called this observation an example of "xanthochromism" (which
should be spelled "xanthochroism") . The point I shall discuss is that this term has
no stable ...
... with the top of the head yellow, although occasionally, but very rarely, a yellow
feather appears there, chiefly in caged birds, as is common in Parrots, which are
so much inclined to xanthochroism. The young of C. xanthogenius are similar to ...
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «XANTHOCHROISM»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
xanthochroism w wiadomościach.
Cardinals not always redbirds
The weird coloration is the result of a genetic abnormality known as xanthochroism. Essentially, its darker pigments are muted, which allows underlying yellow ... «Columbus Dispatch, Sty 12»
