FEATURES OF ANNUAL CYCLE IN THE LIFE OF BIRDS
Keywords:
seasonal phases, non-nesting, breeding, nesting, post-nesting migrations, preparation for winter, wintering, molting, crepuscular, diurnal, seasonal cyclesAbstract
This article describes the period of existence of birds and their relationship with the environment. The life of a bird changes every year, just like other animals. And this is associated with a change in external factors, conditions of existence and has an important adaptive value. The life of a bird is in many ways different from the life of other animals. The body temperature of birds is higher than that of mammals (40 ° C and higher). This is due to the great mobility of the class of birds and causes a high metabolic rate.
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Copyright (c) 2021 Yusufjonova Munisa Abdumannob qizi

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