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Lewis & Clark and JB Hansen NWR

A 38,000-acre refuge in the Columbia River between Portland and Astoria, which contains more than 10,000 acres of intertidal freshwater marsh and swamp.

Red Marker Lewis & Clark and JB Hansen NWR
A 38,000-acre refuge in the Columbia River between Portland and Astoria, which contains more than 10,000 acres of intertidal freshwater marsh and swamp.

Location: On the Columbia River between Portland and Astoria.

Description: This 38,000-acre refuge encompasses more than 40% of the Columbia River estuary and includes numerous islands and bars and extensive mudflats, tidal marshes, and tidal swamps. The refuge encloses part of the largest remaining marsh in western Oregon- more than 10,000 acres- and is an important rearing area for anadromous fish.

Ornithological Highlights: There were 8 bald eagle nest sites here in 2003, and at least that many more eagle pairs nest nearby and forage in the refuge. There is a Great Blue Heron nesting colony at Karlson Island that typically consists of 75-100 nests. The refuge is an important wintering site for Greater Scaup and other ducks, Canada Goose, and Tundra Swan. Many thousands of gulls forage here during February/March when smelt are running, and thousands of Caspian terns from the E. Sand Island colony forage in the lower part of the refuge. More than 10,000 shorebirds may be present at any given time during spring migration.

For more information on Lewis & Clark and JB Hansen NWR, please see the Technical Site Report in the National IBA database.

Links:

46.2239 -123.6316

Location: On the Columbia River between Portland and Astoria.

Description: This 38,000-acre refuge encompasses more than 40% of the Columbia River estuary and includes numerous islands and bars and extensive mudflats, tidal marshes, and tidal swamps. The refuge encloses part of the largest remaining marsh in western Oregon- more than 10,000 acres- and is an important rearing area for anadromous fish.

Ornithological Highlights: There were 8 bald eagle nest sites here in 2003, and at least that many more eagle pairs nest nearby and forage in the refuge. There is a Great Blue Heron nesting colony at Karlson Island that typically consists of 75-100 nests. The refuge is an important wintering site for Greater Scaup and other ducks, Canada Goose, and Tundra Swan. Many thousands of gulls forage here during February/March when smelt are running, and thousands of Caspian terns from the E. Sand Island colony forage in the lower part of the refuge. More than 10,000 shorebirds may be present at any given time during spring migration.

For more information on Lewis & Clark and JB Hansen NWR, please see the Technical Site Report in the National IBA database.

Links:

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