Spanish goats are also known as:

Spanish goats are commonly referred to as "Brush Goats" due to their ability to thrive on brushy, difficult terrain and their effectiveness in controlling invasive plant species. This name highlights their hardiness and adaptability in various environments, especially in areas with dense brush and limited pasture. Spanish goats are often used for land reclamation and clearing, which is why the term "brush" is associated with them.

The other names mentioned, such as "Border Goats" and "Mustangs," do not accurately represent Spanish goats. "Border Goats" might refer to different regional breeds or types, while "Mustangs" specifically refers to feral horses in North America, which are entirely unrelated to goat breeds. Therefore, the term "Brush Goats" is the most fitting and widely recognized name for Spanish goats.