Cypher, B. L., H. O. Clark, Jr., P. A. Kelly, C. Van Horn Job, G. W. Warrick, and D. F. Williams. 2001. Interspecific interactions among wild canids:  ...  more>>

Clark, H. O., Jr., and D. P. Newman. 2008. Endangered Avian Species: Specific versus Sub-specific Research. The Yellowbill 45(9):5-6. more>>

Woods, G., H. Nadel, H.O. Clark, Jr., and S. I. Hagen. 2009. Birds foraging on Jerusalem crickets, with recent observations in the Central Valley,... ...  more>>

Randel, C.J., III, H.O. Clark, Jr., and S.I. Hagen. 2007. Mohave ground squirrel (Spermophilus mohavensis) body mass: A comparison of live-trapped... ...  more>>

Clark, H.O., Jr. 2009. Review of Rocky Mountain Mammals: A Handbook of Mammals of Rocky Mountain National Park and Vicinity, Third Edition by David... ...  more>>

Clark, H.O., Jr., J.D. Murdoch, D.P. Newman, and C. Sillero-Zubiri. 2009. Vulpes corsac. Mammalian Species. 832:1-8. more>>

Western North American Naturalist 69(1), � 2009, pp. 142–143 Condors in Canyon Country: The Return of the California Condor to the Grand Canyon... ...  more>>

Book review for the book "Birdwatcher" published in the Tucson Audubon Society's newsletter "Vermilion Flycatcher"; March-April 2009 issue more>>

Photo: Russian Knapweed (Asteraceae) Publisher: Redstone Media Group, Inc. Publication: Equine Wellness; Vol. 4, Issue 2 ISSN: 1718-5793  ...  more>>

On 29 July 08, 1:17AM PST, I was contacted by Kayoung Kim [milkway702@naver.com], from a Korean publishing company, "Funny books". They wanted to... ...  more>>

Clark, H.O., Jr., D.P. Newman, C.J. Randel, III, and M.D. Meyer. 2008. Temperature tests for diurnal live trapping shade configurations. Transactions  ...  more>>

Clark, H.O., Jr., D.P. Newman, J.D. Murdoch, J. Tseng, Z.H. Wang, and R.B. Harris. 2008. Vulpes ferrilata. Mammalian Species 821:1-6. more>>