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1:1 anthro anus arms_tied avian avian_feet beak bird birdie_(canadabirdie)black-capped_chickadee black_wings blush bound brown_body chastity_cage chastity_device chickadee collar english_text half-closed_eyes hands_behind_back hi_res legband legs_up looking_at_viewer looking_back looking_back_at_viewer lying male map model_sheet narrowed_eyes on_back oscine passerine purple_chastity_cage rear_view shellsist solo spread_wings text text_on_collar tit_(bird)wings wings_tied