Birds of The Tz'utujil

In the entire region of Guatemala, there are a total of 706 species of birds. Only 1 of those species is extinct, which is the Atitlan Grebe, Podilymbus gigas. That species just so happens to be from the Lake Atitlan region where the Tz'utujil inhabit. This extinction seems to have occurred by major alterations to the habitat in which they lived. Out of the 706 species, and 1 extinct, only 14 are threatened species, which is 2% of the birds. They live seemingly in tune to the people who live in the area without that much destruction. 

http://www.birdlife.org/datazone/country/guatemala/species

http://www.petermaas.nl/extinct/speciesinfo/atitlangrebe.htm