Why parrots can copy sounds and 'dance' along to music.

Blue and yellow macaw (Ara ararauna)

About parrots

They are roughly 372 species of parrot (Psittacines) found worldwide and are categorized into three super-families, Psittacoidea (True parrots), Cacatuoidea (Cockatoos) and Strigopoidea (New Zealand parrots). Parrots are found in the majority of tropical and subtropical regions of the world with, the greatest diversity being found in South America and Australasia. 

Most parrots eat a diet consisting of seeds, nuts and fruit but some species eat carrion and others such as lorikeets feed on nectar from flowers. 

They are among some of the most intelligent bird species found on the planet, a feature that makes them popular as pets unfortunately, this leads to illegal trapping of the species in the wild which has an impact on species numbers, resulting in some species becoming endangered in the wild.

Rainbow lorikeet (Trichoglossus moluccanus)

Why parrots can imitate sounds

Parrots are among the few species that can imitate another species sound and a new study has identified the area of the brain that may be the reason that allows this to occur. 

All birds that sing have areas in the brain that enables the singing ability known as cores but in parrots they are also outer rings called shells. To discover how this shell system functions, a team of scientists focused on gene expression (The process in which information from a gene is used to form a functional gene product) of nine species of parrot.

The study found that parrots have a complex pattern of gene expression in all three parts of their brains, meaning that most of the vocal capabilities of parrots is due to the presence of the shells, this came as a surprise to the scientists as it was previously thought that the shells had no connection to speech. However, it was noted that future research is needed to further examine the exact methods of how imitation is achieved.

The fact that shells were present in the most ancient species of parrot the keas, suggests that these vocalization abilities occurred over 29 million years ago or around the time our ancestors separated from our primate cousins. 

Learning to imitate sounds is not a simple process and requires the ability to recognize musical information, process it and reproduce it which, requires a lot of brain power. Fortunately the shell system in parrots enable these processes to occur allowing the parrot to reproduce sounds.

Kea (Nestor notabilis)

All in the groove
Parrots are also one of the few animals that are able to dance along to the beats of a piece of music. Dancing in parrots is associated with non vocal areas of the shells, supporting the possibility of learning sounds and matching that with their behavior. 
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