Keywords
little-known raptors
Eastern Chaco
Abstract
I present data on nesting of four little-known raptors: Chondrohierax uncinatus, Buteogallus urubitinga, Busarellus nigricollis and Falco rufigularis, of the Chaco Oriental of Formosa province, at the southern extreme of its distribution. I provide information on date, location, size, materials, contents of the nests and food habits of nesting and adults.
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