OTTAWA, Kan. (AP) _ A major theft at an eastern Kansas farm has authorities wondering just how to track down some stolen livestock. After all, says Franklin County Sheriff Jeffry Curry, chickens aren't tagged or branded.

KCTV reports that 100 chickens were taken over the weekend from a farm in a rural part of the county. The thief or thieves also took a $1,000 mower and a four-wheel ATV.

Curry estimates the chickens' value at $600.

The farm is owned by Bo Tran, who lives about 40 miles away in the Kansas City suburb of Leawood and works the property on weekends.

Since the chickens aren't marked, the sheriff says he's not sure how they'll be identified. But he says detectives will do what they can to figure out who stole them.