Flathead Audubon’s annual volunteer Work Day at the Owen Sowerwine Natural Area will be Saturday, Sept. 20.

Volunteers will meet at 8:30 a.m. at the Montessori School at 349 Willow Glen Drive in Kalispell to carpool to the trailheads. Work will be done by 11:30 a.m. to allow time to celebrate the 50th anniversary of the Wilderness Act at the Flathead County Fairgrounds.

Volunteer projects will include gathering houndstongue weed seeds and constructing handrails on two footbridges. Weed pullers should wear gloves and bring hand pruners, if available.

Jane Lopp and Associates will submit an application for a $1,000 Prudential Global Volunteer Day grant in recognition of Flathead Audubon Work Day efforts. Twenty volunteers are needed to qualify for the grant.

The grant supports Flathead Audubon’s management of the Owen Sowerwine Natural Area.

Contact Richard Kuhl at 257-5793 for further information and to sign up for the bridge project. Everyone is welcome to participate.