http://www.wiadomosci24.pl/artykul/czy_papuga_moze_byc_swiadkiem_zbrodni_349047.html Psittacus erithacus. By L.Miguel Bugallo Sánchez CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons Licencja: CC4.0
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