The Colville Tribes plans to remove between 1,000 and 1,500 feral horses from the reservation between January and March of 2019.

In 2015, 422 feral horses were removed in a similar effort using an "aerial capture" method that uses a helicopter to help round up the large mammals.

Colville Tribal Fish and Wildlife aerial counts showed a wild-horse population count of 148 in 2007, 309 in 2009, 723 in...