San Francisco in San Francisco City and County, California — The American West (Pacific Coastal)
Nursery on the Parade Ground
Transformed from an army parade ground to a playground for the children of federal prison guards, the expanse of concrete straight ahead is now a nesting ground for Alcatraz's vast colony of western gulls. Each winter, up to 1,100 pairs of western gulls return to breed and raise their young.
Around February, the territorial, lifelong partners arrive on the island ready to fight, if necessary, for the same nesting spots they've had year after year. Using bits of vegetation and man-made debris, they build circular nests on the concrete. In April and May, for approximately 28 days, they incubate their eggs. In June, 2,000 to 3,000 chicks hatch and raise their voices, creating a screeching racket that will continue over the parade ground through July and August.
Erected by Golden Gate National Recreation Area, National Park Service.
Location. 37° 49.588′ N, 122° 25.298′ W. Marker is in San Francisco, California, in San Francisco City and County. This marker is near the north end of the Alcatraz Island parade Touch for map. Marker is in this post office area: San Francisco CA 94133, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within 2 miles of this marker, measured as the crow flies. The Morgue (about 600 feet away, measured in a direct line); Not Just a Water Tower (about 600 feet away); Officers' Club (about 700 feet away); Quartermaster Warehouse and Power Plant (approx. 0.2 miles away); Scow Schooner Alma (approx. 1.1 miles away); Liberty Ships – Born in World War II (approx. 1.1 miles away); Hicks Engine (approx. 1.1 miles away); The Carpenter Shop... (approx. 1.1 miles away). Touch for a list and map of all markers in San Francisco.
Also see . . . Seabirds of Alcatraz. Page on the National Park Service website devoted to the most commonly seen birds on Alcatraz Island. (Submitted on May 13, 2019, by Joel Seewald of Madison Heights, Michigan.)
Categories. • Animals • Environment •
More. Search the internet for Western Gulls.
Credits. This page was last revised on May 13, 2019. This page originally submitted on May 13, 2019, by Joel Seewald of Madison Heights, Michigan. This page has been viewed 54 times since then. Photos: 1, 2, 3, 4, 5. submitted on May 13, 2019, by Joel Seewald of Madison Heights, Michigan.
Editor’s want-list for this marker. Photo of the parade ground. • Can you help?