A green heron is pictured.

Muscatatuck National Wildlife Refuge’s monthly bird walk will begin at 8 a.m. Saturday at the visitor center at the refuge, 12985 E. U.S. 50, Seymour.

At the start of the walk, there will be a tutorial on how to use and adjust binoculars. Binoculars will be available to borrow for those who don’t have their own.

Everyone is welcome, and people can come to the binocular program without staying for the following bird walk.

From 9 a.m. to noon, there also will be a volunteer workday going on at the refuge.