Scarlet macaws are a symbol of fidelity and virtue to many people because they are thought to mate for life—but it turns out ...

Scarlet macaws hatch more chicks than they can care for. Parents favor older chicks, leading to the starvation of younger ...

"This encourages the new parents to take care of the foster chick ... course of three breeding seasons. "Parrots are one of the most endangered groups of birds in the world," Brightsmith said.