Nesting Season Arrives & Construction Continues while Keeping Birds Safe

Spring is here, and with it comes the primary nesting season for California’s birds. The SFPUC WSIP environmental team is taking precautions to discourage native species from setting up camp in trees where they may be disturbed by passing trucks and drilling activities.

To ensure the protection of the bird species, WSIP biologists Elizabeth Gruenstein (pictured to the right) and Jill Grant are hanging shiny nesting deterrents in trees around the BDPL3&4 jobsite in Fremont. Owl shapes, “eyes” and reflective ribbon will scare away birds that come to nest near construction. In years to come, birds will return to the same trees to nest.  

White tailed kite and red-tailed hawk are among the species 

that biologists hope to keep away from construction.

The SFPUC communications team has spoken with a number of residents around the jobsite who have approved the placement of deterrents within their properties. If you have any questions about an unexpected object hung on one of your tree limbs, don’t hesitate to call our 24-hour answering service at (566) 973-1476. Thanks for helping us protect our wildlife!

Balloon deterrents have large “eyes” which scare birds 

that would otherwise nest too close to construction.