Photo 405436, (c) John Sullivan, some rights reserved (CC BY-NC), uploaded by John Sullivan

Attribution © John Sullivan some rights reserved Uploaded by sullivanribbit Source iNaturalist Associated observations Photos / Sounds What Southwestern Blackhead Snake (Tantilla hobartsmithi) Observer sullivanribbit Date April 25, 2010 Place Government Spring, Big Bend National Park, Brewster County, Texas (Google, OSM) Date Added July 8, 2013 03:50 PM PDT 2 IDs Research Grade View Sizes small medium large original