Taxonomic and other data about 23 non-Passeriformes and 68 Passeriformes species are presented in this paper. All specimens were collected by W. H. Partridge, P. S. Humphrey and K. C. Parkes in Entre Rios between december 1959 and august S6·1.llnd are kept in the collection of the Museo Argentino de Ciencias Naturales. First records are given for Phacellodomus ruber and Sublegatus modestus brevirostris. Other data are given for Cathartes aura ruficollis, Caprimulgus l. longirostris, Upucerthia c. certhioides, Cinclodes f. fuscus, Certhiaxis sulphurifera, Spartonaica maluroides, Pseudocolopteryx sclateri, Hemitriccus m. margaritaceiventer, Xenopsaris a. albinucha, Anthus f. furcatus, Anthus l. lutescens, Basileuterus leucoblepharus and Diuca diuca minar.