This area is generally just called the Nisqually NWR, and is a series of trails accessible only on foot.  Bicycles and vehicles not allowed. There are several areas to bird, and an excellent morning walk is led by Shep Thorp and/or others every Wednesday morning.  This is an extensive walk that can talk from about 7-8 AM until early afternoon.  

Consider starting the birding at the viewing platform behind the visitors center for Wood Duck, other waterfowl, possible American Bittern, other rails, perched Bald Eagles and possible Peregrine Falcon. 

From here there are several options. See the site reports for the Twin Barns Loop and the Boardwalk loop which cover most of the rest of the birding at Nisqually. 

Great Horned Owl, Barred Owl, American Bittern, Red-shouldered Hawk (in recent years), shorebirds in season, waterfowl in season.  Between the mature decicuous forest, the open fields, the mudflats, and the creek, the diversity here is awesome. On a good morning in spring you can expect a large list. 

Nisqually National Wildlife Refuge, on the Nisqually River Delta in southern Puget Sound, was established in 1974 for the protection of migratory birds. Three thousand acres of salt and freshwater marshes, grasslands, riparian, and mixed forest habitats provide resting and nesting areas for migratory waterfowl, songbirds, raptors, and wading birds.  Note that hunting is allowed during the hunting season in the fall and some areas may not be accessible for birding at those times. 

Boardwalk trail

Brown's Farm Trail Loop