Modern working cowboys:
On the ranch, the cowboy is responsible for feeding the livestock, branding and earmarking cattle (horses also are branded on many ranches), plus tending to animal injuries and other needs. The working cowboy usually is in charge of a small group or "string" of horses and is required to routinely patrol the rangeland in all weather conditions checking for damaged fences, evidence of predation, water problems, and any other issue of concern.
They also move the livestock to different pasture locations, or herd them into corrals and onto trucks for transport. In addition, cowboys may do many other jobs, depending on the size of the "outfit" or ranch, the terrain, and the number of livestock. On a smaller ranch with fewer cowboys—often just family members, cowboys are generalists who perform many all-around tasks; they repair fences, maintain ranch equipment, and perform other odd jobs. On a very large ranch (a "big outfit"), with many employees, cowboys are able to specialize on tasks solely related to cattle and horses. Cowboys who train horses often specialize in this task only, and some may "Break" or train young horses for more than one ranch.