Clark, H.O., Jr. 2011. Loggerhead Shrike (Lanius ludovicianus) predation on a Pacific Gopher Snake (Pituophis catenifer catenifer). Sonoran... ... more>>
Clark, H.O., Jr. 2011. Review of Wired Wilderness by Etienne Benson. Canadian Field-Naturalist 125:90-91. more>>
Clark, H.O., Jr. 2011. The history of arid-land fox discoveries in North America. Archives of Natural History 38:300-312. more>>
Clark, H.O., Jr. 2011. Alternate coloration of the Northern Pacific Rattlesnake (Crotalus oreganus oreganus). Sonoran Herpetologist 24:70. more>>
Clark, H.O., Jr. 2008. Spea hammondii (Western Spadefoot Toad). Predation and use as burrow decorations. Herpetological Review 39:80-81. more>>
Crow Planet Book Review more>>
Clark, H.O., Jr. 2011. Review of Ecological Intelligence: Rediscovering Ourselves in Nature by Ian McCallum. Western North American Naturalist... ... more>>
Randel, C.J., III, and H.O. Clark, Jr. 2010. Adult white-tailed antelope squirrel (Ammospermophilus leucurus) density, Indian Wells Valley, San... ... more>>
Potter, M.C., H.O. Clark, Jr., P.A. Kelly, and C.E. Uptain. 2010. Fire effects on a population of Heermann’s kangaroo rats at the Alkali Sink... ... more>>
Clark, H.O., Jr. 2011. Reptiles and amphibians as Loggerhead Shrike prey. Sonoran Herpetologist 24:20-22. more>>
Clark, H.O., Jr. 2011. Arizona Toad, Anaxyrus microscaphus (Cope “1866” 1867). Herpetofauna of the 100-mile Circle. Sonoran Herpetologist 24:14-15. ... more>>
Handiwork of the Butcher Bird, March issue of the Yellowbill, Fresno Audubon Society more>>
Clark, H.O., Jr. 2010. Review of Urban Carnivores: Ecology, Conflict, and Conservation by Stanley S. Gehrt, Seth P.D. Riley, and Brian L. Cypher,... ... more>>
Challenges in conservation of the endangered San Joaquin kit fox. Pp 118-131, in People and predators (N. Fascione, A. Delach, and M. E. Smith,... ... more>>
Western Toads as Wildlife Ambassadors more>>