Time and Duration of Basic Seasonal Phenomena in the Annual Life Cycle of Passerines of the Subarctic on the Example of the Lower Ob Region
V. N. RYZHANOVSKY
Pages: 475-487
Abstract
On the basis of a long-term study of passerines of the Lower Ob region, data on the beginning and duration of arrival and flying away, reproduction periods, post-marital and post-juvenile ecdysis are presented. Factors influencing it are discussed.
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