Education: University degree in Tourism Administration. Courses and workshops in natural sciences in Mexico and the United States. In the U.S. he has studied at Cornell University in New York, the Institute for Bird Population in Yosemite National Park, and with the Wildlife Service in Michigan.

Languages: Spanish and English

Background: A native of Celestún, David says that his professional career is his passion, and is centered on ecotourism. Since 1989 he has lead dozens of natural history tours, including tours for groups from the Nature Conservancy, National Geographic Society, Victor Emanuel Nature Tours, and many other groups from conservation organizations.

David is also very involved in local environmental projects. He has participated in marine turtle conservation projects, environmental education programs, and has been an active conservationist in his home community. He is actively involved in avian studies throughout the Peninsula of Yucatan, including banding and monitoring bird populations, and distribution studies.

David conducts the Birds of Celestún Biosphere Reserve program.