Science

Participation campaign with scientific value

Blackbird, tit or robin? From 10. to 12. In January, the Naturschutzbund Deutschland (Nabu) called for its traditional winter bird count. On these days, nature lovers should spend an hour watching how many different birds can be seen at one location – be it at the bird feeder, in the garden, on the balcony or in the park. According to Nabu, the “hour of winter birds” is now Germany's largest scientific participation campaign.

“After the second record summer in a row, the count could provide information on how persistent drought and heat affect the population affect local bird life, »said Nabu federal manager Leif Miller. “The more people join in, the more meaningful the results will be.”

More acorns, more jays?

This winter, conservationists are counting on things like this new insights into the jay. “In the fall, we saw a massive entry of this kind into Germany and Central Europe,” said Miller. The reason the ornithologists suspect is that 2018 particularly many acorns ripened in northeastern Europe. This allowed more birds to come over the winter and breed later. “Many have now moved to us because there is no longer enough food in their regions of origin.” This time there could be a comparatively large number of the colorfully feathered raven birds.

First place: the sparrow

Results of the count can be found by bird lovers at the Internet address www.stundederwintervoegel.de until 20. January report. There is also a learning video for determining birds. In addition, is on 11. and 12. January each time from 10 to 18 the free telephone number 0800 1157115 switched.

During the last large winter bird count 2019 made 138 000 Naturefriends with. The house sparrow, also known as the sparrow, took the top spot, followed by the great tit and tree sparrow.

The “hour of garden birds” then follows in May, in which then returned migratory birds can also be counted. 2018 the Nabu started a similar action for insects. In the “Insect Summer” project, citizens are supposed to identify insects with the help of apps and other online identification aids and also report them to the nature conservation organization.

Scientists point out the limited scientific value of such actions. Nevertheless, they always provide usable data.

( rif / dpa)

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