CHEYENNE, Wyo. (AP) — The owner of two pit bulls held responsible for killing Shetland pony in Laramie County last month has pleaded no contest to three public nuisance charges. The dogs will be euthanized.

The Wyoming Tribune Eagle reports (www.wyomingnews.com ) that Melissa Blair entered the plea Thursday in Laramie County Circuit Court.

Blair faces a $50 fine for each charge. Blair's lawyer indicated she may seek to work off the fines by volunteering at a local animal rescue.

The 8-year-old pony was killed in its pen northeast of Cheyenne last month. Witnesses saw the event. Cheyenne Animal Shelter employees said the pit bulls were covered in blood when they arrived and a local veterinarian confirmed they were responsible.

Wyoming law requires any dog that kills livestock must be put down.