Seasonal phenomena of the year cycle of the whitethroat (Sylvia communis) in the south of West Siberia

Abstract

The data for many years were used to study the migration, nesting and molt of the whitethroat in the Baraba forest-steppe (south of West Siberia). The parameters of reproduction as the basis for adaptation of the species to the habitat conditions were studied in detail. Variability of the reproductive parameters of the whitethroat living in the south of West Siberia is relatively low and comparable to the reference data on the other parts of its range. The shortage of time in the nesting places, which is due to climate and their remoteness from the wintering places, is covered primarily at the expense of completeness of postnuptial molt and its overlapping with the start of autumn migration.