The San Francisco Bay Bird Observatory (SFBBO) is a nonprofit in Milpitas, CA, with the mission to conserve birds and their habitats through science and outreach. For more than 30 years, citizen science volunteers have worked with scientists at SFBBO to capture passerines in mist nets at the Coyote Creek Field Station, a habitat restoration site in Milpitas. They put tiny bands on the birds' legs and collect data on species type, age, weight, health, and other characteristics. SFBBO is looking for people interested in a long term volunteer opportunity. Citizen scientists in the program go through a thorough apprenticeship training process.