how many of santa's reindeer begin with the letter 'd'

In Santa's reindeer team, there are four reindeer whose names start with the letter "D": Dasher, Dancer, Donner, and Blitzen. These four reindeer are often referred to as "Santa's four lead reindeer" because they are typically the first ones to take off on the Christmas Eve flight and set the pace for the rest of the team. Additionally, there is also a female reindeer named Rudolpha who has the word "dawn" in her name, making her the only reindeer who starts with the letter "d" in both her first and last names.