Long-term changes in timing of bird arrival in Kharkov region von A. S. Nadtochij, A. B. Chaplygina

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The Analysis of Heavy Metal Concentrations in Eggs of Collared Fly-catchers, Ficedula albicollis (Passeriformes, Muscicapidae), and Tits, Parus major, Parus caeruleus (Passeriforme... von A. B. Chaplygina, D. I. Yuzyk

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The Robin, Erithacus Rubecula (Passeriformes, Turdidae), as a Component of Autotrophic Consortia of Forest Cenoses, Northeast Ukraine von A. B. Chaplygina, D. I. Yuzyk, N. O. Savynska

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Results of migrating birds inventory on Dzharylhach Island in August 2015 von A. G. Rudenko, A. B. Chaplygina, A. S. Nadtochij, V. P. Rudenko, S. P. Litvinenko, G. A. Evtushenko

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