T he annual Fourth of July fireworks show on the San Francisco waterfront started at about 9:30 p.m. on Friday. The fireworks were launched from two barges on San Francisco Bay, one located at Pier 39 and another located at Aquatic Park. The show went on for about 30 minutes.

As the nation prepares to celebrate Independence Day, here's what to know about watching Fourth of July celebrations on TV and streaming.

"Disturbing roosting migratory birds at night can result in mass deaths," says Bateman. "Disturbing breeding birds can result in colony collapses. Seals and sea lions leave [affected] areas and expend energy swimming away during fireworks."