Simplify the following text for a Grade 9 native English-speaking person.
Original: One of three species in the genus Cathartes , in the family Cathartidae , the Turkey Vulture is the most widespread of the New World vultures , ranging from southern Canada to the southernmost tip of South America .
Simplified: One of three species in the genus Cathartes , ranging from southern Canada to the southernmost tip of South America .