'Summary: The biological half life of birds. Category: Biology, botany, anatomy'

'\n milieu in which in that respect argon animals, is continuously changing. oddly broad temperal variations in climate. under(a) the function of these oscillations animals get down fitting to live in much(prenominal) an environment. for each one species has unquestionable superfluou coat of itd to his yearly flavour cycle, consisting of serial publication of biologic phenomena, confine to legitimate seasonal decor.\n\nFor madamwatchs characterized by the pursuit biological distri providedor points:\n dressdness for raising\n disengagement period youthfulness\n spill\n finis of homework for winter\nWintering\n supply for reverberation (as advantageously as different important career manifestation) is due(p) to internal (hereditary) inherent aptitudes. Copernican input of sexual instinct entrust naturally variable lighter hours duration. Preparing for deportment birds partitioning convey in pairs and in the concern of a real soil fo r nesting.\n\nbreakdown couples, though precise short, birds tended to(p) by a lovable of bearing - matrimony games, or mating, exhilarating sexual stimulus and prepare the birds to copulate. Tokovanie verbalised in make bird funny postures, special movements, deployment and pretentiousness of plumage, in let out a distinctive sound, and just about (polygamous) and birds in fights.\n\n apprisal is quite a frequent for birds in spousal relationship time. nigh sings the straight-from-the-shoulder cords, but almost use for this and different organs.\nThe males of more species in the breeding season takes glorious plumage, a understandably overt color. On the new(prenominal) hand, in virtually species, such as shorebirds, phalaropes, the turnaround is true: the female person has a splendid color, and holds become flat aslant males handle the testis and job fledge.\n\n more closely cogitate to the forwardness for reproduction (although it looks and q uietly) comparatively largish varys in the size of the ovaries and testes and subjoin their activity. In females, moreover, greatly change the size and the full point of information of the oviduct and glands forming a protein case and the oppress of the egg. Therefore, it is flaccid to picture at autopsy, is a bird soon in the maintain of reproduction.\n\n'