Shortly after publication of the paper 'Annotated checklist of the bird species of the upper Rio Urucu, Amazonas, Brazil' (Peres & Whittaker 1991), AW became aware that several important records therein were erroneous. Various communications questioning the credibility of some records in Peres & Whittaker (1991) led him to undertake a thorough review of all data presented. Subsequently, an updated bird list was prepared for the area, combining all valid records by Peres & Whittaker (1991) as well as those made by AA, FP and M. P. D. Santos since 2003 (Aleixo et al. in press). Here we correct errors in Peres & Whittaker (1991), mostly misidentifications (many of them unnecessarily included and easily avoided); reinforce and expand on records whose importance was previously overlooked; correct the identity of species listed as uncertain; update taxonomy; and add important new data.
Bull. B.O.C. 2008 128(2)