| Summary: | The research of the anatidae species was realized within the rdquo;Lower Prutrdquo; Reservation during the years 2017-2021, covering all the aviphenological seasons. As a result, were identified were identified 27 species belonging to the order Anseriformes, Family Anatidae, exclusively aquatic birds, divided into several groups according to appearance, size and lifestyle, with a zoophagous nutrition shelduck, smews and someduck, phytophagous swans, goose and and someduck or mixed someduck. From a phenological point of view, 13 species are winter guests; 8 species ndash; summer guests; 3 species ndash; partially migratory; 3 species ndash; pasage species. Some of them belong to several phenological categories. The are good swimmers, with webbed feet it has an interdigital membrane between the 3 forefingers. With a different degree of vulnerability are included in the Red Book of the Republic of Moldova species: Cygnus olor, Cygnus cygnus, Branta rufficolis, Anser erythropus, Tadorna ferruginea, Tadorna tadorna, Netta Rufina, Aythya nyrocca, Oxyura leucocephala.Cygnus olor, Cygnus cygnus, Branta rufficolis, Anser erythropus, Tadorna ferruginea, Tadorna tadorna, Netta Rufina, Aythya nyrocca, Oxyura leucocephala [1].
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