oh bunnygeek
I should not have looked at bunnygeek pininterest page - I must be able to squeeze in another one
A working sheep dog is a collie but just without the KC pedigree.
I have 4 rescue working sheep dogs that are border collies but have no kc registration
I have 2 rescue Border Collies that just have papers from Kennel Club and ISDS.
I also think collies are misunderstood the number of people that say I must be out walking all day with them. Collies do not need masses of exercise - well mine get about 90 mins off lead everyday BUT they do need a lot of mental stimulation.
My labrador is the one hassling me for exercise but the collies want attention and things to do. This may be training, it may be scent work, it is sometimes sheep work, it may be agility, obedience, search and rescue but they need to be busy.
I work with dogs as a profession and am lucky that my guys can come to work with me. Well actually they think I go to work with them 
I think collies has stuck the course as working dogs because one they are just amazing (!) but they are very people orientated dogs. They want to be with people and do have a very special bond with their owner. This makes them easy to have around in a working environment, they will sit on the quad bike, they will hike up the fields, they are adaptable on what they will do, work sheep, work cows, they will sit at your feet while you do accounts etc.
They are highly intelligent and also empathetic as well as instinctive. They can work for 12 hours one day and then happily spend the next day watching the sheep in the paddock. They have limited health issues and are pretty low maintenance a quick brush etc and they are fit for anything.
They are stunning dogs and I am privileged to be able to live with them 