Volume 133(2), pp. 157-162.pdf
Tryjanowski, P., Karg, M.K. & Karg, J. 2003.
Diet composition and prey choice by the red-backed shrike Lanius collurio in western Poland.
Belg. J. Zool. 133(2): 157-162
volume-133-2-pp-157-162.pdf
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