Dexter cattle are a smaller version of the black Angus cattle. We have been farming them for 10 years and could not think of a more docile beast. Of course, like people, you can get a very cranky one, But these are rare indeed.
The main color with Dexters is black, but now and then a dun or a dusty gold will appear. Over the years, the natural horns are slowly being bred out, but in the main, they continue to large rather big horns for their size and a lot of people who dislike horns on their beasts settle for de-horning them at an early age.
The only problem we found with them is they are sexually mature at about 5-6 months of age. The bulls will indulge in their main bad trait of being escape artists. We have had several who met a sticky and permanent end because we could not find a way to keep them in their paddock. The worst part about that was the glee with which they greeted us when we went with feed to bring them home. They will follow like little dogs.
They are also natural milkers and it is rare to find a cow which will not stand eating food while you milk. Some are almost as good as the traditional milkers such as Jerseys and Guernseys. The meat is flavoursome and tender And, as long as the bull is under 1 year old, you do not need to turn it into a bullock to eat it.