After thinking about this for a while I came to a conclusion.
Why does a turkey need to be pardoned in the first place?
What evil thing did it do that a pardon is required?
So here it goes.
A heritage turkey is a natural god created animal.
It does not need a pardon for it is part of the kingdom by nature.
It has domicile rights by birth.
A BBB is a man made creation.
Created for profit which has many bad side effects to the animals health. (cripples easy, super short life, etc)
It has no domicile rights by birth.
It is property by creation.
So are they pardoning mans creations (in general) and not the animal itself?
It would seem so.