Volunteers are invited to assist with a variety of habitat management activities including forest rehabilitation (assisting with selective tree removal with hand saws and loppers, herbicide application, brush management and stacking, and site evaluations), invasive species control (mowing, herbicide application, tree and brush cutting with hand saws and loppers), and seed collecting/handling/broadcasting (hand collect specific species, process, store and hand broadcast under the direction of the leader or refuge staff or adding to the refuge's seed mixes). This type of work requires heavy physical labor in natural areas and in challenging environments. Participants must be in good physical condition. The work periods are 9:00 AM to noon on Wednesdays and Fridays at Humbug Marsh and Mondays from 9:00 AM to noon at the Gibraltar Bay Unit. The necessary tools will be provided.