The most noticeable difference between a Рembroke and a Сardigan is the presence of a tail, a Рembroke does not.
Welsh Corgi Pembrokes are almost always born without a tail. Very rarely in the litters appear, short-tailed babies, which is not considered a marriage. Even the Welsh Сardigan has rounded ears, and the Pembroke has pointed ears.
Almost always born WITH tails. They are docked at 3 to 5 days old.