Peregrine Falcons at San Jose City Hall — Live Webcast from the Nest

The History of the Nest at City Hall

In the spring of 2006, San Jose City Hall employees noticed unusual guests on the building's cornice — two wild peregrine falcons. The birds of prey chose the 18th floor of the new City Hall building as their nesting site. The male was nicknamed "Jose", and the female — "Maria". This was the first documented case of peregrine falcons nesting in the heart of Silicon Valley.

Researchers from the Santa Cruz Predatory Bird Research Group promptly installed a special nest box to help the pair settle into the urban environment. Since then, the City Hall building has become home to several generations of these remarkable raptors.

Famous Residents: From Clara to Grace

The most famous resident of the nest was Clara — a female named after the courthouse on Clara Street. She nested at City Hall for many years with different partners. In 2009, Clara raised four chicks from four eggs, which became a record for the urban population.

Her partner named Carlos was named after nearby Carlos Street. After Clara, a new female appeared at City Hall — Grace, who took over the nest in 2019 and continues the raptor family traditions on the 18th floor.

How Peregrine Falcons Adapted to Life in a Megacity

The peregrines at City Hall hunt right above downtown San Jose. Their diet primarily consists of pigeons, starlings, and grackles — abundant urban birds that the raptors catch in mid-air at speeds of up to 300 km/h. Studies show that urban peregrine falcons have successfully adapted to life among skyscrapers, using buildings as substitutes for rocky cliffs.

The height of the 18th floor of City Hall is ideal for nesting: sufficient elevation for a good vantage point, protection from ground predators, and an abundance of prey in the form of urban birds. The concrete walls and metal structures of the building create a microclimate similar to natural rock formations.

City Hall Architecture — The Perfect Home for Raptors

The San Jose City Hall building, opened in 2005, was designed by architect Richard Meier. Its distinctive shape with ledges and niches proved attractive to peregrine falcons. The nest is located in a special recess on the facade, protected from precipitation and direct sunlight.

The city of San Jose funds the FalconCam monitoring program in partnership with researchers from the University of California. This is one of the oldest urban raptor monitoring projects in the United States.

Observing Peregrine Falcons: From 18,000 Viewers to the Present Day

The web camera went live by the 2007 nesting season. Already in April 2008, when the chicks hatched on April 22, the broadcast received an average of 18,000 visits per day. San Jose Mayor Chuck Reed personally participated in covering the birds' lives, issuing regular press releases about events at the nest.

Today, the peregrine falcon nest web camera remains popular among wildlife enthusiasts. The round-the-clock broadcast allows viewers to observe the birds' behavior in real time — from egg incubation to the chicks' first flights.

What You Can See on the Camera

The camera is aimed inside the nest box located on the 18th floor of City Hall. In the frame is the nest, lined with pebbles, dry twigs, and bird feathers. In the center is the area with eggs (blurred to protect the birds). In the background are the concrete and metal walls of the building, structural elements of City Hall. Adult peregrine falcons periodically appear in the frame, bringing prey or taking turns on the nest. At night, the camera switches to infrared mode, allowing observation of the birds in the dark.