The marsh grassbird, also known as the Japanese swamp warbler, is a species of Old World warbler in the family Locustellidae. It is found in China, Japan, South Korea, Mongolia, and Russia.
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Select a tracking region above to ping the eBird database and reveal live hotspots for the Marsh Grassbird.
Low-Light Telephoto Systems
Identifying specific features of the Marsh Grassbird requires high-contrast magnification. Check out the top-rated 8x42 optics.
