Acta Ornithologica

Acta Ornithologica is an ornithological scientific periodical published in Poland (two issues per year) by the Polish Academy of Sciences, ISSN 0001-6454. It is in English with summaries in Polish. It was established in 1933 as Acta Ornithologica Musei Zoologici Polonici but has been published under the present title since 1953.