BUR #2207 has been approved by @evazion.
create implication cat_on_lap -> cat
create implication cat_on_lap -> animal_on_lap
create implication bird_on_shoulder -> bird
create implication bird_on_shoulder -> animal_on_shoulder
create implication bird_on_arm -> bird
create implication bird_on_arm -> animal_on_arm
create implication bird_on_finger -> bird
Reason: Similar to implications from cat_on_head to cat and on_head and from animal_on_head to animal (and a whole load of others).
There is no animal on finger tag.
I'm not fully convinced that everything that gets tagged with bird_on_x warrants the animal tag, but the implication is already there for bird on head to bird and animal on head and thus animal, so may as well be consistant.
EDIT: This bulk update request is pending automatic rejection in 5 days.
EDIT: The bulk update request #2207 (forum #161606) has been approved by @evazion.
Updated by DanbooruBot