The largest number of individuals were presented in the families: Psitacidae (N = 340, S = 10), Thraupidae (N = 199, S = 13) and Tyrannidae (N = 164, S = 18), unlike the Turdidae, Anatidae,
Anhimidae, Alcedinidae and Therskiornithiadae families, which each had three or fewer individuals.
Durante este estudio se escogieron aleatoriamente 100 aves silvestres correspondientes a 11 familias (Psittacidae, Ramphastidae, Ophistocomidae, Cracidae, Anatidae, Icteridae, Alaudidae, Burhinidae, Phoenicopteridae,
Anhimidae y Rallidae) y 16 especies (Ara ararauna, Ara macao, Amazona spp, Amazona ochrocephala, Ramphastos toco, Aulacorhynchus prasinus, Ramphastos tucanus, Ophistocomus hoazin, Crax Alberti, Anas discors, Agelaius icterocephalus, Alauda arvensis, Burhinus bistriatus, Phoenicopterus ruber roseus, Chauna chavarria, Gallinula chloropus), a las cuales se les tomo muestras correspondientes a 4 gramos de materia fecal [22].