Environmentalists investigate bird deaths

SAN FRANCISCO Gary Langham, with the Audubon Society in California, says that at this time of the year only one or two birds turn up in a week.

But about 65 birds have shown up dead - including about a dozen Friday.

Wildlife advocates aren't sure of the cause, but many suspect that two recent sewage spills may be to blame. More than 5 million gallons of raw sewage poured from the Sewerage Agency of Southern Marin into the bay in the last week of January.