A mule deer on the 270,000 acre ranch. (Spencer Weiner / Los Angeles Times)
A valley oak stands on a ridge as a biologist and ranch employees take in a view of the Tejon Ranch. (Spencer Weiner / Los Angeles Times)
Graham Chisholm, director of conservation for Audubon California, looks at a Bullock’s oriole nest during a tour of the ranch. (Spencer Weiner / Los Angeles Times)
Pete Bloom calls for a spotted owl near Lopez Flats on Tejon Ranch. (Spencer Weiner / Los Angeles Times)
Wildlife researcher Scott Thomas sets a net to capture screech owls so they could be tagged for future study. (Spencer Weiner / Los Angeles Times)
Wildlife researchers Chris Neimela, left, and Scott Thomas untangle a captured screech owl on Tejon Ranch. (Spencer Weiner / Los Angeles Times)
Researcher Chris Neimela extends the wing of a screech owl. (Spencer Weiner / Los Angeles Times)
An Injured red-tailed hawk is rescued by biologist Pete Bloom during a ranch tour. (Spencer Weiner / Los Angeles Times)
Ranch employee Rob Peterson with a desert night lizard found on the property. (Spencer Weiner / Los Angeles Times)
