Rule 34 Dev - beak beak_growth black_hair brown_body brown_feathers claw_growth claws eyewear feather_growth feathered_wings feathers feet feral flaccid genitals glasses grey_background growth hair human_to_feral jumping male nipples nude open_mouth open_smile overweight overweight_human overweight_male penis running scutes short_hair simple_background smile solo species_transformation spread_wings tail tail_feathers talons toe_claws toes transformation transformation_sequence wings jagal yksteldus accipitrid accipitriform avian bird buteo chickenhawk human mammal red-tailed_hawk hi_res sequence shaded signature|15281456610