rule 34 2023 43 4 toes anisodactyl anthro avian bird collar collar only corvid digit ring digital media artwork eurasian magpie feathered wings feathers feet greyscale hi res holarctic magpie jewelry looking at viewer magpi magpie corvid male monochrome nude oscine passerine ring solo spearmint magpie character story story in description toe ring toes wings 9219424