as hunting dog
the now extinct white English terrier and the bull dog
The Sealyham Terrier originated from England.
They were originally bred for dog fighting.
They were first bred as hunting dogs. For hunting rabbits and foxes etc.
It was first bred as a hunting dog and a pest exterminator.
as rat catcher
pest exterminator
for catching rats
for hunting small animals
The Cesky Terrier was first bred to hunt small mammals, birds and wild boars in packs in the forest of Bohemia, Europe. Learn more about the breed history of the Cesky Terrier at the related link.
They were'NT bred together. tHe Boston Terrier is a mix of a English Bulldog and A White Terrier. Not a Rat Terrier.
I have a blue staffordshire bull terrier myself. I don't know when they where first bred both i was told that when you keep breding black staffordshire bull terriers over & over again and only with blacks eventually you get blue staffordshire bull terrier.