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Updated: June 28, 2025
It seems as if when the lakes existed in the lower lands, the higher levels gave forth great quantities of water from chalybeate fountains, which deposited this iron ore. Grey granite or quartz with talc in it or gneiss lie under the haematite. The forest resounds with singing birds, intent on nidification. Francolins abound, but are wild.
All the winter birds are doing their share in the chorus and orchestra; crows, jays, woodpeckers, nut-hatches, juncos, tree-sparrows. But suddenly a woodpecker begins a new sound, his vernal drumming! Not the mere tap, tap, tap, in quest of insects, but the love-call drumming of the nidification season, nearly three months ahead of time.
Blackbird, sexual differences in the; proportion of the sexes in the; acquisition of a song by; colour of the beak in the sexes of the; pairing with a thrush; colours and nidification of the; young of the; sexual difference in coloration of the. Black-buck, Indian, sexual difference in the colour of the. Blackcap, arrival of the male, before the female; young of the.
A., on variation in the skulls of the natives of America. Meinecke, on the numerical proportion of the sexes in butterflies. Melanesians, decrease of. Meldola, Mr., colours and marriage flight of Colias and Pieris. Meliphagidae, Australian, nidification of. Melita, secondary sexual characters of. Meloe, difference of colour in the sexes of a species of. Memnon, young.
Nicholson, Dr., on the non-immunity of dark Europeans from yellow fever. Nictitating membrane. Nidification of fishes; relation of, to colour; of British birds. Night-heron, cries of the. Nightingale, arrival of the male before the female; object of the song of the. Nightingales, new mates found by. Nightjar, selection of a mate by the female; Australian, sexes of; coloration of the.
Bubas bison, thoracic projection of. Bubalus caffer, use of horns. Bucephalus capensis, difference of the sexes of, in colour. Buceros, nidification and incubation of. Buceros bicornis, sexual differences in the colouring of the casque, beak, and mouth in. Buceros corrugatus, sexual differences in the beak of.
I had never supposed that any of our land birds were given to behaving in this ill-mannered, unnatural way, and the matter seemed to call for investigation. My first resort was, of course, to books. The language of Wilson and Audubon is somewhat ambiguous, but may fairly be taken as implying the male bird's presence throughout the period of nidification.
[Footnote 63: Bouvier, "La Nidification des abeilles
It is singular that Alexander Wilson, and, in fact, all the naturalists, except Audubon, who have written about this interesting bird, have failed to examine its nest and eggs. By the unsatisfactory manner in which Audubon refers to the nidification of this parakeet, one is led to believe that even he did not become personally acquainted with its breeding habits. The offer by Mr.
Hornbill, African, inflation of the neck-wattle of the male during courtship. Hornbills, sexual difference in the colour of the eyes in; nidification and incubation of. Horne, C., on the rejection of a brightly-coloured locust by lizards and birds.
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