Rule 34 Dev - anthro beak black_beak black_eyebrows bodily_fluids brown_body brown_eyes brown_feathers collar eyebrows feathers flesh_wall fully_inside glistening glistening_eyes internal looking_at_viewer male male_prey mouth_closed nude red_collar side_view solo vore yellow_collar roobin avian 1:1 digital_media_(artwork) low_res signature|17163820765