Avifaunistic study in mangrove areas in a stretch of the São Caetano de Odivelas – Pará coast

The knowledge of the coastal avifauna is essential to understand the dynamics of the coastal ecosystem along the northern coast of Brazil, which is considered an area of high priority for the conservation of regional biodiversity. The Equatorial Region includes the coast of the States of Rio Grande do Norte to Amapá, and the coast of the States of Maranhão, Pará and Amapá is made up of mangroves, an ecosystem of transition between the terrestrial and marine environments, subject to the tidal regime, this ecosystem on the Amazon coast is of paramount importance because the States of Pará and Maranhão represent 57% of the mangroves in Brazil. This research aimed to determine the occurrence of resident and migratory coastal species, as well as their ecological importance and use in the mangrove ecosystem, the study site was São Caetano de Odivelas, in the locality of São Miguel, the methods of data collection used were: visual observation with the method by estimation in larger populations and open ornithological networks linearly from 6:00 a.m. to 11:00 p.m. and from 3:00 p.m. to 6:00 p.m. for two consecutive days totaling the sample effort amounted to 1.080 net hours. The results showed that 72 species of birds were recorded distributed in 27 families and 11 orders, being these residents, seasonal visitors from the northern hemisphere and other endemic to Brazil. It is concluded that there are several species recorded on the coast in São Caetano de Odivelas - Pará, such as endemic species, residents, and other seasonal visitors.