I grow up in a small village in eastern europe. It is amazing that you can befriend most of the animals. Chickens are too primitive for that, but cows turned out to be quite intelligent. You can do it the same as with crows, but you should start with a younger animal. You may bring a young cow something to eat and after some time it will recognize you. And they really love to be hand carded (this thing: https://en.wikipedia.org/wiki/Carding). Also remember that cows are quite dangerous (as most of the huge farm animals).