Theodore Roosevelt National Park management updated their website (https://www.nps.gov/thro/learn/nature/feral-wild-horses.htm) on July 14, 2021 and stated:
Announcements:
July 14, 2021
Theodore Roosevelt National Park will be postponing horse captures for the remainder of 2021 due to minimal staffing and an increased program focus on wildfire preparedness and response. Staff will continue administering contraceptives to herd mares to mitigate population growth and its associated impacts on other wildlife.