Bird enthusiasts are celebrating the first time in decades that the endangered California clapper rail has been spotted breeding in San Francisco.
A pair of the birds and their two chicks are nesting in Heron's Head Park in the city's .
The chicken-like bird has been under a U.S. Fish and Wildlife recovery plan since 1984. The San Francisco Chronicle reports (http://bit.ly/r3pptm) that it was thought to be extinct in San Francisco until a single clapper rail was spotted last year.
The latest sighting of the two chicks was made on Aug. 8. Experts determined the chicks were 6 weeks old at the time, so they must have been born in the park.
Fish and Wildlife officials say people should avoid the park wetlands so the chicks, which cannot fly yet, are not disturbed.
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