license: This image is a derivative work of the following images: Image:DendrocoposMajor.jpg licensed with GFDL 2007-01-10T20:23:54Z FrankDrebin 600x800 (145555
Dendrocoposmajor Édouard Traviès (1807-1868) «Les oiseaux les plus remarquables» L'Épeiche ou le Pic varié (Picus major) https://creativecommons.org/publicdomain/mark/1