This post is reprinted with permission from The Catholic Education Resource Center
The partridge in a pear tree is Christ. In nature, a mother partridge will feign injury to lure predators away from her defenseless nestlings. In the same way, our Lord protects us, vulnerable human beings, from Satan. The pear tree symbolizes the salvation of mankind, just as the apple tree symbolizes Adam and Eve's Fall from Grace.
Two turtle doves represent the Old and New Testaments.