Northern Spotted Owls are listed as threatened throughout their range in the western United States. The biggest threat to this species is the loss of their forest habitats from decades of development and logging. Mt. Tam’s spotted owls enjoy protection from these dangers, but the recent arrival of larger, more aggressive Barred Owls has caused some pairs of spotted owls to leave their breeding territories.
..and the Trees
The tallest trees on Earth, coast redwoods can grow to over 320 feet and live to be more than 2,000 years old. Logging and development during California’s population boom in the 1800s left only 5% of old-growth coast redwood forests intact. Today, climate change, wildfire, and forest diseases like Sudden Oak Death are the biggest threats to protected redwood forests like those found on and near Mt. Tam.