Birds of the lower Middle São Francisco river

The Lower Middle Sao Francisco (LMSF) river encompasses the region of the river basin in the State of Bahia from the border with Minas Gerais down to Remanso. We present the results of field surveys done between 2007 and 2009 in three regions within the LMSF (Correntina, Ibotirama and Boqueirao da Onca). Data were gathered with mist nets and through direct observations. In total, we recorded 315 bird species, 139 of them with at least one physical documentation. The richest families were Tyrannidae (41 species) and Furnariidae (17). We ringed about 1,350 individuals representing 112 species. Five species threatened with extinction were found during our surveys, in addition to 13 species endemic to caatinga and 4 endemic to cerrado. Our recordings of Penelope jacucaca, Anodorhynchus leari, Lepidocolaptes wagleri and Sporagra yarrellii are among the most noteworthy.