Eight cows roamed through the Russell Township and Chesterland area Monday.
Sheriff's deputies say the cows are on the move and they're dangerous.
Cattle drivers have been working to bring them in since Saturday, trying to help the Amish man who owns the herd track it down.
"They move really fast. They're fast animals," said cattle expert Jason Nemuhaitis.
Nemuhaitis and friend, Marsha Bijiou, told News 5 people need to understand they can get hurt because roaming cows are dangerous.
"If you've ever hit a deer, think about hitting a two-to-three-hundred-pound cow," Nemuhaitis said.
"They were on Mayfield road, Cedar road," said Bijiou.
The pair told News 5 their plan is to keep searching and keep everyone safe.
"We're trying to do the right thing for the cows too," Nemuhaitis said.
Drivers in the Chesterland and Russell Township areas are urged to be cautious.
As of 5:30 p.m. three out of eight of the cows had been caught.