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anthro avian balls barazoku beak biped bird blindfold chain chastity_cage chastity_device falconry_hood feathered_wings feathers flaccid genitals hi_res hood hooded house_sparrow lock male musclegut muscular oscine padlock passerine pecs penis pinup pose reclining sensory_deprivation signature sitting solo sparrow spread_legs spread_wings spreading submissive submissive_male toothpasta wings