https://creativecommons.org/publicdomain/zero/1.0/ https://www.rawpixel.com/image/561679 Blue tit, cyanistes caeruleus and great tit, parus major (1596–1610) by Anselmus Boëtius de Boodt. Original from…

Blue tit, cyanistes caeruleus and great tit, parus major (1596–1610) by Anselmus Boëtius de Boodt. Original from the Rijksmuseum. Digitally enhanced by rawpixel.

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