LONG-WINDED DISCUSSION :)
Given the structure of that sentence,
inserting "called" is not only unnecessary
but somewhat incorrect: the voting
process named the alternative bird "Yam."
I.E., The voting process did not select a
bird *called* "Yam." The voting process
selected the name "Yam."
The voting was for pre-selected pairs of names. ``Marshmallow and Yam'' received 27 percent of the total, edging out ``Wattle and Snood,'' which got 26 percent. ``Democracy and Freedom'' and ``Blessing and Beauty'' each got 20 percent.