Scientists note a decline in the number of sparrows in cities.
Among the possible causes of the decline are features of modern construction, where buildings lack the niches and attics customary for nesting; excessive landscaping and frequent lawn mowing, which reduce the food base; predation by domestic cats; and the use of pesticides and herbicides on agricultural land, write on Sobaka.ru.
The drop in sparrow numbers may affect urban ecosystems, for example by leading to increases in populations of insect pests. To support the birds, experts recommend regular winter feeding with proso millet or millet groats, preserving shrubs, reducing the frequency of mowing wild lawns, planting fruit and berry crops, and installing nesting boxes.
Remember that from August 9 to 17 residents of Kirov Oblast and across the country can help scientists by taking part in a sparrow census. The nationwide campaign is not being held for the first time, and its goal is to collect up-to-date data on the numbers of house and tree sparrows.
Другие Новости Кирова (НЗК)
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Scientists note a decline in the number of sparrows in cities.
Experts report that in a number of Russian cities there has been a decline in the population of the house sparrow — a species closely associated with humans. At the same time, the tree sparrow, which can manage without constant proximity to people, is increasingly being found in urban areas.