Across North America, bird populations are declining precipitously ... Similarly, the UN released a proposal on Monday that calls for one-third of the Earth to be designated as national parks ...
North America has lost more than a quarter of its birds since 1970 Bird populations ... Scientists hope the findings will serve as a wake-up call. The two studies are published in the journals ...
Meanwhile, on land, the Snowy Owl is struggling to find prey as ice melts in the North American ... on birds. ''A species at higher risk of extinction is a worrying alarm call that action needs ...