In the winter, the bulls are turned out with the cows for breeding.
In the summer, they are pregnancy-tested.
In the fall, the calves conceived the previous winter are born.
The next winter, the young calves are rounded up, processed with vaccinations, and branded to provide permanent identification. They are also given a RFID (radio frequency identification) tag and a color-coded number tag, which makes it easier to identify a specific animal from a distance in a field. While the calves are separated from their mothers, the cowboys make a point of imprinting the calves to humans by walking slowly through the herd.