In den USA sinken die allgemeinen Vögel am schnellsten, und der Verlust des Lebensraums ist schuld. Nordamerika hat seit den 1970er Jahren Milliarden von ihnen verloren und heute werden mehr als ein Drittel der Vogelarten bedroht. Ähnliche Trends wurden bei europäischen Vögeln beobachtet. Insekten zeigen auch die gleichen Muster:

It’s no secret that birds are struggling. North America has lost billions of them since the 1970s and today more than one-third of bird species are considered under threat. While efforts to stem the tide tend to target endangered and rare species, new research shows that the bulk of losses are coming from the most common birds, such as Rufous Hummingbirds that flit around home feeders and Barn Swallows that swoop over farm fields.

“We think of them as such staple species, like they’ll always be there,” says Gates Dupont, an ecologist at Princeton University. But when Dupont and biologist Andy Dobson looked at nearly six decades of data on 244 bird species, they found that abundant species saw the steepest drops in their numbers.

Their findings, published July 30 in Science Advances, show that just 5 percent of species make up 80 percent of the total declines in avian abundance, according to data from the U.S. Geological Survey’s North American Breeding Bird Survey. At the same time, some rare species have been increasing their populations.

[https://www.science.org/doi/10.1126/sciadv.adw8971](https://www.science.org/doi/10.1126/sciadv.adw8971)

Shout out to the Cornell University Merlin app. Im not even really into birds/birding, but its fun and easy to log birds that you encounter.

Ever hear a bird but have no clue what it is? Merlin.

Ever see a bird and wanted to know more about it? Merlin.