||The paper presents the results of the observations during October 2006 – April 2010, the aquatic birds which inhabit the Apa lake, Satu Mare county, during all the cold season. 54 species of 10 orders and 19 families that spend the winter or part of it on the lake have been identified, 6 of these species abound or are common, most of them, 48 species, are only occasional visitors. 14 of the species observed are strictly protected. Most birds were observed during the coldest weather and most species during the spring passage. Minimum protective measures have been recommended in order to protect the birds.
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