Ridgway’s Rail

Tracks Ridgway’s Rail population density in tidal marsh habitats of the San Francisco Bay

A Secretive Marsh Bird That Reflects the Quality and Resilience of Tidal Marsh Habitats

Last Update: 2015

Ridgway’s Rail (Rallus obsoletus) is an endangered bird that depends on a healthy channelized tidal marsh—low marsh for foraging, mid- and upper marsh for nesting and shelter from predators, and transitional habitat between marsh and uplands for refuge during high tides. Changes in population density may signal shifts in habitat quality and provide a measure of whether restoration goals are being met.

The status and trend information for this indicator is currently under development and will be released on this page during a future update. The most recent Our Estuary update can be viewed in the 2015 report, while the San Francisco Bay State of the Birds includes a 2025 update to the Ridgway’s Rail indicator.
Bird in a marsh<br />
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A Ridgway's Rail forages in a marsh.

A Ridgway’s Rail forages in a marsh.

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