"Feral goats" refers to domesticated goats that have returned to the wild and adapted to living independently without human care or interaction. Full definition
The disputed clumps of land are small and barren, not to mention overrun with feral goats — but they sit in waters rich with tuna and oil. (canadianbusiness.com)
In addition, the park is home to numerous red kangaroos and emus, and a fair number of feral goats, European rabbits, and feral pigs, all of which would provide opportunities to assess the effects of dingoes on a variety of bird and mammal species. (conservationmagazine.org)
The San Clemente Island goat is a type of domestic goat derived from feral goats isolated on San Clemente Island, one of the Channel Islands of California. (en.wikipedia.org)