Mt. Tam is home to many native animal species, including at least 35 mammals, 184 birds, 11 fish, and 25 amphibians and reptiles. Wildlife are found in every habitat type on the mountain, where they may be grazers, predators, prey—or play some combination of these key ecosystem roles. Changes in their abundance or distribution across the landscape can indicate the effects ecological stressors like climate change, invasive species, and human disturbance.
