The vocal organ of birds, the syrinx, represents a key innovation in the evolutionary history of
vertebrate communication. Three major avian clades: passerines, parrots, and …

We describe a colorful and distinctive new species of tanager from the lower slopes of the
Andes of southeastern Peru and western Bolivia. The species was first noted from …

The house sparrow (Passer domesticus) is one of the most widespread invasive bird
species, with numerous and dense populations established across urban-agricultural …

Background: The Impact of Technology Integration in Learning on Increasing Student
Engagement refers to how this technology integration can be used well in learning. With the …

Biodiversity indicators and indices of functional diversity can play a vital role in monitoring
the impact of harmful human activity on species' populations and on the ability of biodiversity …