Volunteers from the Pasadena Audubon Society conducted a series of approximately weekly bird surveys on the Rubio Canyon property acquired by the Arroyos & Foothills Conservancy (AFC) from April 7 to June 26, 2016. The purpose of the surveys was to determine species using the property, define breeding birds vs. migrants, determine diversity of species and check for use by any Special Status species. The surveys were coordinated by Lance Benner and Kym Buzdygon (Pasadena Audubon).
85 different species were found. Common birds like Mourning Dove, Anna’s Hummingbird, California Scrub-jay, Common Raven, Wrentit, California Thrasher, Northern Mockingbird, California Towhee, and Spotted Towhee were found on all surveys. Unusual species include Swainson's Hawk, Peregrine Falcon, Mountain Quail, Hairy Woodpecker, Steller's Jay, Violet-Green Swallow, Olive-sided Flycatcher, and Cedar Waxwing.