What eats White-crowned Pigeons?

Any of the raptors, such as eagles, ospreys, hawks, kestrels, and falcons will take a pigeon... for food.

Then there's the cat family, and even dogs have been known to take pigeons... for food. Some humans even eat pigeons -they are referred to as "squabs" in your grocery store's refrigerator or frozen section.

Why, is one missing?