Out-of-control grasses may lure song sparrows near San Francisco into bad
real estate deals.
SPARROW SUPPORT Nests of Alameda song sparrows need dense tangles of plants for structural support and protection from predators. C. Nordby
GRASSY INVASION Thickets of Spartina cordgrass are taking over tidal marshes around San Francisco as an Atlantic cordgrass invades the West Coast and hybridizes to form a super-tough species.
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