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Updated: July 12, 2025


These common Argentine birds, most of them of the open country, and all of them with a strikingly advertising coloration, are interesting because of their beauty and their habits.

Pheasant, Fire-backed, possessing spurs. Pheasant, Golden, display of plumage by the male; age of mature plumage in the; sex of young, ascertained by pulling out head-feathers. Pheasant, Kalij, drumming of the male. Pheasant, Reeve's, length of the tail in. Pheasant, Silver, triumphant male, deposed on account of spoiled plumage; sexual coloration of the. Pheasant, Soemmerring's.

This is shown in regard to the coloration of animals, the phenomena of mimicry, the protective arrangements of plants, the development of instinct in animals, and the origin of flowers.

Trimen writes to me, "no characters of mere marking or coloration are so unstable in the Lepidoptera as the ocelli, both in number and size." Mr. This woodcut has been engraved from a beautiful drawing, most kindly made for me by Mr.

Many times they passed by the mouths of iguarapes, or little affluents, with black waters. The coloration of these waters is a very curious phenomenon. It is peculiar to a certain number of these tributaries of the Amazon, which differ greatly in importance. Manoel remarked how thick the cloudiness was, for it could be clearly seen on the surface of the whitish waters of the river.

Through such successive representations it maintained a relation to Time. Moreover, it imparted to the images it thus produced a coloration of its own, and in all this was an emblem of the Soul. For Space and Time are the outward conditions with which it is concerned, and it adds thereto abstract ideas, the product of its own nature.

Bulletin of the Nuttall Ornithological Club, vol. v. p. 3. For the benefit of the lay reader, I ought, perhaps, to have explained before this that the Philadelphia vireo is in coloration an exact copy of the warbling vireo. There is a slight difference in size between the two, but the most practiced eye could not be depended upon to tell them apart in a tree.

I returned to the window. The Nautilus was no longer moving. The heat had become unbearable. From the white it had recently been, the sea was turning red, a coloration caused by the presence of iron salts. Although the lounge was hermetically sealed, it was filling with an intolerable stink of sulfur, and I could see scarlet flames of such brightness, they overpowered our electric light.

Although our unnatural process of breeding has done much to degrade the original beauty of the cocks and hens, destroying the delicate coloration of the feathers as well as the admirable blending and contrasts of their pristine hues, it seems likely that the effect on the physical and mental development as a whole has not been unfavorable.

Capercailzie, polygamous; proportion of the sexes in the; pugnacity of the male; pairing of the; autumn meetings of the; call of the; duration of the courtship of; behaviour of the female; inconvenience of black colour to the female; sexual difference in the coloration of the; crimson eye-cere of the male. Capitonidae, colours and nidification of the.

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