- The Skagit Headquarters Unit is tidal marsh (estuary) on Fir Island, west of and adjacent to Freshwater Slough. The unit is predominantly vegetated by cattail and sedge and used extensively by waterfowl and other waterbirds, shorebirds, raptors, and passerines.
- Skagit Wildlife Area (wdfw.wa.gov)
The Skagit Wildlife Area contains 18,138 acres of wildlife habitat composed primarily of intertidal estuary, managed agricultural lands, and native habitats. The area is divided into 21 separate management units, the majority of which are scattered throughout the west half of Skagit County, with some in Island, Snohomish, and San Juan counties…