The 'dialect' of birds
Birds of the same species may have different vocalizations depending on the environment in which they live and the ' language ' of the urban birds is much different from that of their rural counterparts.
Professor Yu Lijiang from the Animal Research Institute of the Chinese Academy of Sciences recorded the " singing " of the neck-necked crested bird (photo) - the rare bird species mainly found in Myanmar, Vietnam, Laos and Cambodia. , Thailand, China - in the forests of Jiangsu province. She found that the children living near the city center had a high and clear voice while the song of the relatives in the countryside sounded more calm and quiet.
This may be due to the environment, the countryside is less noisy than the city so the birds do not have to sing high. At the same time, Professor Yu also compared the tape recordings of crests in 5 different cities and found that they all had their own ' dialect '.
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