Avifauna of the carnaubal of the Paranaíba Delta, Piauí, Brazil

Abstract

This study sought to survey the avifauna of an area of the carnaubal located in the city of Parnaíba-PI, being developed through four weekly samplings over a full seasonal cycle, totaling 48 samples. The method was the sampling by transects, trying to characterize the resident and migratory birds species, and their relationship with the environment including the search for food, water, shelter, nesting sites and rest, as well as the presence of migratory routes. 2131 contacts with birds belonging to 36 species in 19 families and 13 orders were recorded. The Order Cuculiformes had the most representative recorded contacts, 586, and the most abundant family was Ardeidae with six species. The dominant trophic guild was the omnivorous birds (15 species). The greatest number of registered species (n = 13; 36%) occurred in not floodable open field environments, followed by species of aquatic environments: lakes, rivers and wetlands. The recognition of riparian birds as aquatic species is not usual, but there is a consensus that there are assemblies of species unique from these environments.