Wintering of water birds in the Utrish reserve (Northeastern Black Sea coast) in the winter of 2011/12

Second edition. First publication: Yu.V. Lohman, O. Bykhalova 2012. For the wintering of the limnofil birds of the Utrish reserve (the northeastern Black Sea coast) in the winter season 2011/2012. // Caucasus. ornithol. notable 24: 66-69.