ESTIMATION OF THE POPULATIONS STATUS AND HABITAT CONDITIONS OF ANSERIFORMES IN THE STATE NATURE RESERVE «GYDANSKY» (RUSSIA) USING ULTRALIGHT AVIATION Journal title: Nature Conservation Research. Заповедная наука Authors: Sofia B. Rozenfeld, George V. Kirtaev, Natalya V. Rogova, Mikhail Yu. Soloviev, Andrey A. Gorchakovs... Subject(s):
