The book presents the species of birds sighted in the Rio Grande in Ubatuba, SP and the Rio Santo Antonio in Caraguatatuba, SP. The endemism, conservation status, diet and size of the birds are indicated. The study site is located in the Atlantic Forest domain, on the north coast of the state of Sao Paulo, which is home to a rich biodiversity of birds, with a high number of endemic species. Conservation of the natural environment is therefore essential for the survival of the species.