ok , first they are chocolate not black , patterdale is a yorkshire village in england, they developed this dog for going to ground to kill fox an badger on farmers land, they used breeds like lakeland terrier , fell terrier an even staffordshire , to produce the best small hunting dog with inpecable love an affection to there masters an children. I have 2breeding *****,s i is black an the othere chocolate, but these pups actually came out of the black ***** an a black dog. you can get tan coulor . But ther main thing they should have is i white spot on there chest, you get rough coats an smooth , 3 are rough in the pic an 1 smooth though they all look smooth.MY pups go to the forestry commision has vermin control an ride in the landrover with there ranger. I do sell as pets as there love for children is well known, they would die for the owner an love nothing more than to be at you side night an day, my 2 sleep at the bottom of my bed.