作者: Artur Goławski , Zbigniew Kasprzykowski
DOI: 10.13157/ARLA.58.2.2011.277
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摘要: Summary. The presence of wintering birds on manure and stubble was studied in the open farmland eastern Poland. Among 34 species recorded during transect surveys, 13 were heaps 16 fields. Species diversity did not differ significantly between these habitats but there differences densities individuals. Snow depth had a positive influence observed negative impact those associated with stubble. Logistic regression analysis showed that selected larger surface areas fresh manure, duration affect their choices. This habitat can be used as an alternative food source roosting site long-lasting snow cover. has been particularly important for yellowhammer Emberiza citrinella, whose Polish breeding population is one largest Europe.