Identifying the composition of avian diets is a critical step in characterizing the roles of birds
within ecosystems. However, because birds are a diverse taxonomic group with equally …

The páramo grassland ecosystem in the high Andes requires definition of spatially explicit
and large-scale priorities for bird conservation, especially for lands outside of protected …

Most empirical research on biological shortfalls has focused on vertebrate taxa. This is
important given many species in poorly studied groups such as invertebrates, plants, and …

Animal tracking has become an effective way to identify where and when migratory species
encounter threats throughout their annual cycle. Yet, untracked or poorly tracked species …

Amazonia has a very high, although still incompletely known, species diversity distributed
over a mosaic of heterogeneous habitats that are also poorly characterized. As a result of …

Una barrera importante para el avance de la ornitología es la exclusión sistémica de los
profesionales del Sur Global. Una colección especial de artículos publicada recientemente …

Abstract “The biodiversity of the Caatinga is poorly known” has been a mantra among
studies on biodiversity in Brazil, including birds. However, species richness in semiarid …

Citizen science data is a useful tool for the study of bird migration, especially in the tropics,
where more traditional sources of biological data are scarce. In this paper, we studied the …

Avian nests are fundamental structures in avian reproduction and face strong selective
forces. Climatic conditions are likely to have shaped the evolution of specific nest traits, but …

Although recent molecular phylogenetic analyses of Lepidothrix manakins (family Pipridae)
have helped clarify their evolutionary relationships, the placement of several lineages …