rule 34 2020 absurd res alpha channel anatomically correct animal genitalia animal penis ass avian avian penis beak bird bodily fluids cariamiform claws cloaca crest disambiguation erection feathered wings feathers feral forked tongue genital fluids genitals green eyes hi res looking at viewer male multicolored penis multicolored tongue nude open mouth paraphysornis penis pink cloaca precum raised tail scales side view simple background solo spiral penis tapering penis terror bird terrorbird text tongue transparent background wings yellow body yellow feathers zw3 4350603