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CAUTION: BIRD NESTING SEASON

Birds are sensitive during the nesting season. Vegetation clearing, ground disturbance, heavy wake near shorelines and other site construction and recreational activities can destroy eggs or nestlings or cause nest abandonment. If you encounter an active nest, leave it be and give it space until young hatch and depart the area. Do not destroy eggs, chicks, or adults of wild bird species. Learn about the laws that govern migratory birds in Alaska including possible exceptions for subsistence gathering. More information on avoiding waterbird harassment and timing recommendations for construction activities to minimize impacts to nesting birds.

Yukon Flats Refuge is the nation’s third largest wildlife refuge. With the Brooks Range to the north and the jagged limestone peaks of the White Mountains to the south, this refuge encompasses the so-called "Yukon Flats" - a vast fire-dependent area of wetlands, forest, bog, and low-lying ground centered on the confluence of the Yukon, Porcupine, and T'eedriinjik (Chandalar) rivers. The Flats are a critical waterfowl breeding ground due to the large area of wetland provided by the estimated 40,000 small lakes and streams in the area. The refuge also encompasses the section of the Yukon River that serves as a key breeding ground for Alaska's only endemic fish, the Bering Cisco. For thousands of years, this area has been—and continues as—a homeland for Gwich’in and Koyukon Athabascan people.

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      Yukon Flats Changing Environment 2021.pdf

      Major themes include warmer temperatures, especially in winter; thawing permafrost and changing plants; lake drying and changing water conditions; more frequent large wildfires; and arrival of more southern wildlife species  

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