United States or Kazakhstan ? Vote for the TOP Country of the Week !
The Stringocephalus is also so abundant in the Middle Devonian of the banks of the Rhine as to have suggested the name of Stringocephalus Limestone. Megalodon cucullatus, Sowerby. Eifel; also Bradley, S. Devon. a. The valves united. b. Conularia ornata, D'Arch. and De Vern. Ser. volume 6. Bronteus flabellifer, Goldf. Mid.
Merganser, trachea of the male. Merganser serrator, male plumage of. Mergus cucullatus, speculum of. Mergus merganser, young of. Metallura, splendid tail-feathers of. Methoca ichneumonides, large male of. Meves, M., on the drumming of the snipe. Mexicans, civilisation of the, not foreign. Meyer, on a convoluted body at the extremity of the tail in a Macacus and a cat. Meyer, Dr.
Audubon, J.J., on the pinioned goose; on the speculum of Mergus cucullatus; on the pugnacity of male birds; on courtship of Caprimulgus; on Tetrao cupido; on Ardea nycticorax; on Sturnella ludoviciana; on the vocal organs of Tetra cupido; on the drumming of the male Tetrao umbellus; on sounds produced by the nightjar; on Ardea herodias and Cathartes jota; on Mimus polyglottus; on display in male birds; on the spring change of colour in some finches; on migration of mocking thrushes; recognition of a dog by a turkey; selection of mate by female birds; on the turkey; on variation in the male scarlet tanager; on the musk-rat; on the habits of Pyranga aestiva; on local differences in the nests of the same species of birds; on the habits of woodpeckers; on Bombycilla carolinensis; on young females of Pyranga aestiva acquiring male characters; on the immature plumage of thrushes; on the immature plumage of birds; on birds breeding in immature plumage; on the growth of the crest and plume in the male Ardea ludoviciana; on the change of colour in some species of Ardea.
With the allied Mergus cucullatus we have, however, a case of this kind: the two sexes differ conspicuously in general plumage, and to a considerable degree in the speculum, which is pure white in the male and greyish-white in the female.
Word Of The Day