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For horrific reasons, the sparrows are fading away

The size of some bird groups has also decreased.

The song of birds has not only become quieter, but has become more monotonous in the last 25 years in Europe and North America. The reason for this is the disappearance of species, the decrease in the number of individuals, which is due to human activity, such as intensive agriculture, writes MTI.

Experts from an international research team led by Simon Butler analyzed bird song recordings and bird watching data recorded as part of the Citizen Science Monitoring project. The recordings and reports were made by interested lay persons at 200,000 locations in 22 European countries, as well as the United States and Canada.

The scientists used the information to map changes in bird song over the past 25 years in specific regions. Almost everywhere, the size and diversity of bird song has also decreased over time.

This is because the diversity of bird species has also gradually decreased, with the size of individual bird groups decreasing. This loss is painful not only to the world of birds but also to humans. Nature noise is also important for health and well-being

Researchers affirmation.

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