Douglas fir Douglas-fir forest is the primary habitat of the red tree vole ("Arborimus longicaudus") and the spotted owl ("Strix occidentalis"). Home range requirements for breeding pairs of spotted owls are at least 400 ha () of old growth. Red tree voles may also be found in immature forests if Douglas-fir is a significant component. The red vole nests almost exclusively in the foliage of the trees, typically above the ground, and its diet consists chiefly of Douglas-fir needles. A parasitic plant sometimes utilizing "P. menziesii" is Douglas-fir dwarf mistletoe ("Arceuthobium douglasii"). The leaves are also used by the woolly conifer aphid
Douglas County search and rescue Douglas County search and rescue Douglas County Search and Rescue is an all-volunteer organization in Douglas County within Douglas County Sheriff's Office. With approximately sixty active members year round, Douglas County's Search and Rescue (Douglas SAR) responds to searches for missing children and adults, evidence and other search requests in the county and on mutual aid calls anywhere in the state of Colorado. Douglas SAR is a mountain rescue Type I certified team able to handle the toughest terrain and remain out in the field without resupply for extended periods. Today the team, headquartered in Castle Rock, CO at "13S