in hayward laura anthony, abc 7 news. >>> it looks like the contra costa county board of supervisors will not put the pay raise controversy behind them any time soon. today the deputy sheriffs association filed a federal lawsuit against the board. the association claims supervisors threatened retaliation after deputies joined a petition drive to allow voters to determine pay increases. the suit also claims supervisors threatened to undermine future collective bargaining efforts. news of the suit comes on the same day the board voted unanimously to rescind the 33% bump in salary. it originally approved in october. >>> new information tonight on the impact caused by last night's shutdown of the san mateo bridge. at one point protesters had blocked both sides of highway 92. we're learning tonight that the sudden blockage caused accidents and injuries. abc 7 news reporter vic lee is live near the bridge with these new developments. >> reporter: well, we're told that it's the first time protesters have ever shut down the san mateo bridge. the district attorney tells us that bridge is no p

abc 7 news reporter laura anthony is live in hayward where a mobile triage center is set up. laura. >> reporter: hi. this is actually a mobile hospital behind me. as we said though our tests under way as we speak in sacramento to figure out what this substance is. we also know that three birds were located in foster city that had the substance on them, but i'm told that they probably traveled there on their own. that the larger issue is here on the shorelines in the east bay. >> they are both males. one is apparently really sticky. >> reporter: one by one birds soiled with a mysterious gooey substance continued to arrive at a mobile triage center in hayward. >> this is a female. the ones with the black heads and white spot with the red beak, those are the males. >> reporter: there the animals are given a syringe filled with warm water. >> so this is -- they can't warm themselves in the water because when the stuff gets on their feathers, it disables them from being waterproof. it gets in the feathers and the water gets to the skin. >> reporter: meantime in sacramento, two diff