BUR #53771 has been rejected.
create implication owl_girl -> bird_girl
create implication owl_boy -> bird_boy
create implication parrot_girl -> bird_girl
create implication parrot_boy -> bird_boy
create implication penguin_girl -> bird_girl
create implication penguin_boy -> bird_boy
create implication duck_girl -> bird_girl
create implication duck_boy -> bird_boy
create implication chicken_girl -> bird_girl
create implication chicken_boy -> bird_boy
Similarly to arthropod girl/arthropod boy, birds are a large group of visually distinct animals and specific types are commonly portrayed, and those specific types should imply the main tag since they're types of bird.
