The Mountain Bluebird is a stunning bird species that can be found in the Ravenswood Open Space Preserve, located in San Mateo County, California. These birds are known for their striking blue plumage, which contrasts beautifully against their white underparts. The Mountain Bluebird is a migratory species, and can be spotted in the preserve during the winter months. They can often be found perched on shrubs or fence posts, where they scan the surrounding area for insects and other small prey. The preserve provides a vital habitat for the Mountain Bluebird, which relies on open grasslands and other natural habitats for its survival. Visitors to the preserve can enjoy the beauty of these birds and learn more about their important role in the local ecosystem.