Simplify the following text for a Grade 8 native English-speaking person.
Original: The breed remains more popular than some other breeds of Spaniel , including the Clumber Spaniel , Field Spaniel , Sussex Spaniel and Irish Water Spaniel .
Simplified: The Welsh Springer Spaniel is a breed of dog and a member of the spaniel family . They are similar to the English Springer Spaniel and historically have also been called the Welsh Spaniel and the Welsh Cocker Spaniel .