Cavity-nesting birds, like this black-cheeked woodpecker in Ecuador, rely on natural cavities, like the hole in this tree for nesting and reproductive success. (Daniel Karp, UC Davis) With an ...

A Pacific parrotlet looks up from its nest box in Ecuador. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or ...

image: Front and side view showing how parrotlets assist and extend their long jumps with small "proto-wingbeats," which bird ancestors may have used to develop their foraging flight capabilities.

A new study of cavity-nesting birds in Ecuador shows the influence of deforestation on their habitat and reproductive success. Nest boxes could help. With an extendable pole fitted with a small camera ...