Avian hatching failure is a widespread phenomenon, affecting around 10% of all eggs that
are laid and not lost to predation, damage, or desertion. Our understanding of hatching …

The accelerated rate of grasslands transformation has led to noticeable population declines
of many grassland bird species. Although several species of the Pampas grasslands are of …

Translocation is a useful tool for the conservation of endangered species, because it
enables individuals to be moved between wild populations and between captivity and the …

Psittacidae species are among the most threatened birds in the world. Approximately one-
half of the 390 parrot species are experiencing population declines. The Blue-fronted …

The Blue-fronted Amazon (Amazona aestiva) is a Neotropical parrot with a large distribution
in South America, including areas in Brazil, Bolivia, Argentina and Paraguay. A substantial …

Brood reduction is a within-brood partial mortality due to sibling rivalry and has been
observed in a large number of bird species from diverse taxa. Here, I summarize several …

Abstract The endangered Yellow-headed Parrot (Amazona oratrix) has experienced a
considerable reduction in abundance and distribution. Identifying natural and anthropogenic …

Understanding stress physiology is crucial for species management because high levels of
stress can reduce reproduction and the individual's ability to face threats to survive. One of …

Background Cockatoo reproduction in captivity supplies a powerful tool to limit the economic
motivation to capture endangered species from the wild; nevertheless, scientific data about …

Psittacines are often illegally captured and sold as pets. The historical capture of specimens
and the deforestation of the native forest have had negative consequences on psittacine …