Kit fox  (Vulpes macrotis)

Crepuscular: To be active in the early dawn or twilight.
Monogamous: Mating with a single partner.
Polygyny: In animals, a pattern of mating in which a male has more than one female partner.
Subspecies: A population usually restricted to a geographical area that differs from other populations of the same species, but not to the extent of being classified as a separate species.

1. IUCN Red List (November, 2005)
   http://www.iucnredlist.org
   
2. Burnie, D. (2001) Animal. Dorling Kindersley, London.
   
3. SEDESOL. (1994) Norma Oficial Mexicana NOM-059-ECOL-1994 que determina las especies y subespecies de flora y fauna silvestres terrestres y acuáticas en peligro de extinción, amenazadas, raras y las sujetas a protección especial, y que establece especificaciones para su protección. Diario Oficial de la Federación, 487 (10): 2 - 60.
   
4. US Fish and Wildlife Service. (1998) Recovery Plan for Upland Species of the San Joaquin Valley, California. U.S. Fish and Wildlife Service, Portland, Oregon.
   
5. Sillero-Zubiri, C., Hoffman, M. and Macdonald, D.W. (2004) Canids: Foxes, Wolves, Jackals and Dog: Status Survey and Conservation Action Plan. IUCN Publications Services Unit, Cambridge. Available at:
   http://www.canids.org/species/Vulpes_macrotis.htm
   
6. Blue Planet Biomes (January, 2006)
   http://www.blueplanetbiomes.org/san_joachim_kit_fox.htm
   
7. U.S. Fish and Wildlife Service: Sacramento Fish and Wildlife Office (January, 2006)
   http://www.fws.gov/sacramento/es/animal_spp_acct/sj_kit_fox.htm
   
8. eNature (January, 2006)
   http://www.enature.com/flashcard/show_flash_card.asp?recordNumber=MA0020
   
9. IUCN/SSC Canid Specialist Group (January, 2006)
   http://www.canids.org/species/Vulpes_macrotis.htm
   
10. Sillero, C. (2008) Pers. Comm.
    
11. California State University, Stanislaus Endangered Species Recovery Program (January, 2006)
    http://esrp.csustan.edu/speciesprofiles/profile.php?sp=vuma