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Taxonomy and geographical distribution of the Furnariidae (Aves, Passeriformes). Bulletin of the AMNH ; v. 166, article 1
.......................................... 7 Resumen ..................... 7 Introduction ................... 7 Diagnosis of Furnariidae ................. .. 8 Furnariidae versus Dendrocolaptidae
A Systematic Study of the Red-Backed Hawks of South America
studied exhaustively in the field, but the large amount of material that I have seen suggests that poecilochrous is a distinct species, not an individual variant or altitudinal form of polyosoma. The
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