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Clark, H. O., Jr. 2010. A review of anthropogenic-sourced cover items used by the Desert Night Lizard (Xantusia vigilis). Sonoran Herpetologist 23:23–24.
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Clark, H. O., Jr. 2017. Possible predation of a western burrowing owl by common ravens. Central Valley Bird Club Bulletin 20:65–69.
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Clark, H. O., Jr., H. S. Shellhammer, and S. D. Gaimari. 2006. Ectoparasites found on salt marsh harvest mice in the northern salt marshes of Grizzly Bay, California. California Fish and Game 92:52–54.
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