Acta Zoologica Cracoviensia, 17() 1972
Studies on the Activity of Starlings Sturnus vulgaris Linnaeus, 1758, in the Breeding Season
Abstract:
The results of four years’ study on the activity of Starlings in three main periods of breeding, i. e., those of egg laying, incubation, and nestling feeding are presented. The investigation was carried out under natural conditions. Endogenic agents have a decisive effect on the course of activity in particular stages of breeding, whereas the exogenic ones (chiefly weather) determine the behaviour of Starlings at different times of day. Their behaviour varies considerably from pair to pair. In general, the share of both parents in the feeding of the young is more or less the same, but fairly big differences are observed between individual pairs.
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