North America has lost nearly 3 billion birds since 1970, a study said Thursday, which also found significant population declines among hundreds of bird species, including those once considered ...

Nearly 3 billion fewer birds exist in North America today than in 1970. While scientists have known for decades that certain kinds of birds have struggled as humans (and bird-gobbling cats ...

Study data documents an overall decline in bird population that accounts for 3 billion fewer birds in the U.S. and Canada than in 1970. In the most basic terms, the research revealed a finding ...

There are almost 3 billion fewer birds in the United States and Canada now than in 1970, according to a disturbing new study. That amounts to a 29 percent drop in the avian population over the ...

In the United States and Canada, almost three billion birds have been lost since 1970—or about 29 percent of birds that once lived in those countries. “It’s really quite frightening,” says ...

WASHINGTON (AP) — North America’s skies are lonelier and quieter as nearly 3 billion fewer wild birds soar in the air than in 1970, a comprehensive study shows. The new study focuses on the ...

New research finds that quote has held true since it was written. Over three billion birds, or 29% of 1970s abundance have been lost in North America over the last 50 years. To make these dismal ...

According to a well-documented study, we have lost some 3 billion birds since 1970. The situation is not improving despite our backyard generosity. A second die-off of wildlife is underway ...

Over the last 50 years, the U.S. and Canada have slowly but surely lost 29% of their bird populations — amounting to nearly 3 billion birds ... North America since 1970. "It's staggering ...

Birds thrive in grasslands, deserts, mountains, forests, tundra and along the oceans’ coasts. But the skies have grown more silent in recent decades. Since 1970, North America has lost more than ...

Evening grosbeaks, once common in the Northland, are one species that have declined dramatically in recent decades, part of an overall decline of nearly 3 billion birds since 1970, according to a ...