Rule 34 Dev - 2019 accipitrid accipitriform animal_genitalia animal_penis anthro avian balls bearded_vulture bird book canid canine canine_penis choose_your_own_adventure collar digitigrade erection feathers fur gavin_stien hi_res hybrid juden kneeling knot leash long_tail male male_only mammal nude old_world_vulture penis presenting smile solo text vulture|3549670800