Avian nest collection of Argentina: an unexplored resource for research

Abstract

Studies based on avian nest collections had several advantages for researchers, such as establishing direct comparisons avoiding locating the nests in the field or the preservation over time of the nest material. Nonetheless, access to nest collections usually becomes an issue for researchers, due to the lack of information about their contents. This study presents the contents of the La Plata Museum nest collection in order to encourage a greater use of this valuable resource. The collection holds 435 nests built by 101 species in 30 families. Some nests stand out due to the lack of knowledge about the breeding biology of the species, like the Black-capped Piprites (Piprites pileata), the Plumbeous Black-Tyrant (Knipolegus cabanisi), the Dot-winged Crake (Porzana spiloptera), the Greenish Schiffornis (Schiffornis virescens) and the Bay-ringed Tyrannulet (Phylloscartes sylviolus). In the collection are well represented the species of Pampas ecoregion (242 nests), as well as Patagonian forests (58 nests), Yungas (30 nests) and Paranaense forests (27 nests).