Brad Moline sleeps better these days. One year after avian influenza forced the Calhoun County turkey farmer to depopulate his turkey farm, he feels like things are back to normal.

A new normal, that is.

"Bird flu is certainly in the back of my mind. It doesn’t keep me up at night, but it’s in the back of your mind every time you do chores," said Moline, a Calhoun County Farm Bureau member who raises turkeys with his father, John, and his brother, Grant. The family has been raising turkeys since 1924.

Avian influenza was first...