By no means an all-encompassing list, however these are some of the more notable animal species to look for in the lower RGV. Likelihood of seeing these species range from highly likely to see while just walking around, to incredibly unlikely to see even with detailed and extensive searching. This list defines the lower RGV as including the counties of: Hidalgo, Cameron, Willacy, Starr and Zapata. Currently Reptile and Amphibian sections are complete, I've created a separate list for each respective taxon as well.