Name a common method of cattle identification.

Ear tags are a prevalent method of cattle identification due to their practicality and effectiveness. They are typically made of durable plastic and are attached to the cow's ear, displaying a unique identification number or code that is easily visible from a distance. This method allows for quick and easy visual identification of individual animals within a herd, which is essential for management, health monitoring, and breeding records.

Ear tags are favored because they can be used seamlessly in various herd management systems. They are also relatively inexpensive and simple to apply. Unlike registration papers, which are more about documentation and lineage, or brands, which can be less visible and involve more permanent alterations to the animal, ear tags provide an efficient way to identify cattle while minimizing stress for the animals. Additionally, collars can sometimes be impractical or uncomfortable for cattle, especially in large herds.