“Many call types assort together, much like words are commonly given together within bodies of human text, such as grass and ...

Warble duets seem linked to active territory defense. Physical fights in the wild were always preceded by warble duets. Playback experiments also showed that parrots increased warble duets when ...

The ability to learn by watching others interact had previously only been documented in humans, making macaws just the second species to demonstrate this ability (humans being the first). A captive ...

Wild yellow-naped amazon parrots in Costa Rica produce structured vocal duets that follow rule-governed sequences strikingly similar to the syntax found in human language, according to new research ...