yep, and every thing in that song stands for something special...
A partridge in a pear tree stands for Jesus' birth,
Two turtle doves stand for the OT and NT,
Three French hens stands for Faith and Hope and Love,
Four calling birds stands for the first four books of the NT (Matthew, Mark, Luke, and John),
Five golden rings stand for the Torah (Genesis, Exodus, Leviticus, Numbers, Deuteronomy),
Six geese a-laying stand for the six days God took to create the universe and all within it,
Seven swans a-swimming for the seven spiritual gifts of the Holy Spirit (Prophecy, Ministry, Teaching, Exhortation, Giving, Ruling, Mercy),
Eight maids a-milking stand for the beatitudes (Blessed are the poor in spirit, those who mourn, the meek, those who hunger and thirst for Righteousness, the merciful, pure in heart, the peace makers, and the persecuted),
Nine ladies dancing stand for the Fruit of the Spirit (Love, Joy, Peace, Longsuffering, Gentleness, Goodness, Faith, Meekness, and Temperance),
Ten lords a-leaping stand for the Ten Commandments (Exodus 20),
Eleven pipers piping stand for the Eleven Faithful Apostles (in other words, all of Jesus apostles excluding Judas Iscariot),
and
Twelve Drummers Drumming stand for the 12 Points of the
Apostles Creed.
I bet that those against Christmas don't know about all that when they hum it, eh?