David A Jahn: Western Mexico Whiptail (Aspidoscelis costata)
David A Jahn: Sierran Treefrog (Pseudacris sierra)
David A Jahn: Oropel
David A Jahn: Snakes of Santa Cruz Mountains
David A Jahn: Pacific Ring-necked Snake (Diadophis punctatus amabilis)
David A Jahn: Coastal Giant Salamander (Dicamptodon tenebrosus)
David A Jahn: Seal Wrestling
David A Jahn: Teton Mountains
David A Jahn: Mexican West Coast Rattlesnake (Crotalus basiliscus)
David A Jahn: Watching
David A Jahn: Arizona Ridge-nosed Rattlesnake (Crotalus willardi willardi)
David A Jahn: California Mountain Kingsnake (Lampropeltis zonata)
David A Jahn: Oak Titmouse (Baeolophus inornatus)
David A Jahn: High Orange
David A Jahn: Puerto Rican Iguana
David A Jahn: Greater short-horned lizard (Phrynosoma hernandesi)
David A Jahn: California Covey
David A Jahn: Southern Torrent Salamander (Rhyacotriton variegatus)
David A Jahn: Orange-chinned Parakeet (Brotogeris jugularis)
David A Jahn: Turquoise-browed Motmot (Eumomota superciliosa)
David A Jahn: San Joaquin Coachwhip (Masticophis flagellum ruddocki)
David A Jahn: San Francisco Gartersnake (Thamnophis sirtalis tetrataenia)
David A Jahn: San Joaquin Coachwhip (Masticophis flagellum ruddocki)
David A Jahn: Western Bluebird (Sialia mexicana)
David A Jahn: Dusky Pygmy Rattlesnake (Sistrurus miliarius barbouri)
David A Jahn: Tiger Rattlesnake (Crotalus tigris)
David A Jahn: Cloudy Eclipse
David A Jahn: California Kingsnake (Lampropeltis getula californiae)
David A Jahn: San Joaquin Coachwhip (Masticophis flagellum ruddocki)