Monk parakeets have unique ‘voices’ that may identify friends and foes

The small parrot species is the first bird known to have multiple vocalizations unique to a particular individual similar to humans.

To spider wetzel

Wild monk parakeets have unique “voiceprints” that help identify individuals within a group.

Select species such as humans and bottlenose dolphins (Truncated Tursiopus), with vocalizations unique to a single individual, many animals sound indistinguishable from their peers. It tends to make a squealing sound.

“It’s hard to think of three more groups [evolutionarily] Dolphins, humans and parrots,” says Karl Berg…