Endangered, steep decline since early 2000’s that may be leveling off, but still at levels well below historical numbers
Cause of decline:
Hunting; development-- about 90% of tidal marsh habitat around San Francisco Bay has been lost
Current primary threat(s):
Pressure from invasive species, non-native predators, and habitat loss due to sea level rise
What we’re doing about it:
Point Blue has biologists monitoring populations through in the field studies as well as summarizing and analyzing current and historical data. We are working with partners to improve and standardize survey methods for these and other secretive marsh birds. We are informing our partners on how and where it is best to restore tidal marsh habitat using our long-term data sets and online tools. We are restoring marsh upland transition habitat—areas where Clapper Rails can take refuge during high tide periods and where tidal marsh can migrate to with sea level rise in the future—through our Students and Teachers Restoring A Watershed Project.
How you can help:
Visit The State of the Birds San Francisco Bay 2011 website for detailed information on Clapper Rails for government agencies and land owners on actions needed to increase populations.