North America lost 3 billion birds since 1970: report
(WorldNews France)

The number of birds in the United States and Canada has fallen by an astonishing 29 percent, or almost three billion, since 1970, scientists reported Thursday, saying their findings signaled a widespread ecological crisis. Grassland birds are the most affected, because of the disappearance of meadows and prairies and the extension of farmland, as well […] ......