Before learning to speak, human babies go through a vocal stage known as babbling, which is a well documented part of the vocal language acquisition process. Basically, babbling is how an animal ...

A newly published UC Berkeley-led study compiles nearly 30 years of research and observations of the green-rumped parrotlet, a small South American parrot, and their behavioral patterns of infanticide ...

A green-rumped parrotlet (Forpus passerinus), widow and her nestlings. When the nestlings spill out of the nest cavity begging for food as these chicks are, this indicates that they aren't getting ...

A green-rumpled parrotlet widow and her nestlings. The behavior of the nestlings — spilling out of the cavity begging for food — indicates that they aren't getting enough food. A team of University of ...

Scientists have spent decades studying the incredible behavior of baby green-rumped parrotlets in Venezuela. Researchers already knew wild parrots used individualized contact calls to recognize mates ...

You may be familiar with the large, talking green bird known as a parrot. There's another parrot type called parrotlet, which is much smaller than the birds you’re familiar with. Parrotlets can also ...