The Civil War Parade Grounds in the Presidio bustled with families, friends, and their pets at the second Parks Conservancy hosted the second Parks4All: Brewfest.

Amy Meyer was a key figure in the creation of a huge national park centered around San Francisco’s Golden Gate — a park that includes everything from Alcatraz Island, a redwood forest, a dozen beaches spread along a dramatic coastline, 140 miles of trails, 758 historic buildings covering more than 128 square miles, an area more than 2½ times the size of San Francisco. Last year it attracted 14.9 million visitors.

A recent addition to the field is a camera trained on peregrine falcons on Alcatraz Island off the San Francisco coast. The live stream, a collaboration between the National Park Service and Golden Gate National Parks Conservancy, has attracted more than 130,000 users, according to the conservancy.

In a single square acre, the Black Point historic gardens pack quite a punch of late-spring blooms. Poppies, silver bush lupine, elegant Clarkia, mustard, wild radish, yellow bush lupine and yarrow stretch out in the sun. Rock phacelia, stone crop, tidy tips and borage line the walls.

Just decades ago, peregrine falcons were largely absent from California. But now, a pair of the birds are nesting on Alcatraz Island in what officials call a "tremendous conservation success" – and you can watch their family live online.