An unidentified substance has killed or injured hundreds of birds so far.
SpaceX, a private space company, is trying again on Friday to launch its Dragon spacecraft to the International Space Station. Its first attempt to launch this mission was scratched on Monday because of a helium leak.
SpaceX is launching a rocket to the International Space Station this afternoon. The live webcast begins at 12:45 PST and the launch itself is scheduled for 1:58.