Audubon study shows global warming pushes birds northward

The warming climate in North America is pushing some birds as far as 300 miles further northward than only a few decades ago, according to a study released today by the Audubon Society.

The report concluded that the U.S. government needs to make drastic environmental policy changes to stop "pervasive ecological disruption."

The Daily Green noted some findings in the study:

• Of the 305 species studied, 58 percent spend winters further north.
• Seventy percent of common bird feeder and forest birds shifted their ranges north.
• The average northward migration among all species is 35 miles.
• The three species to move the furthest are the Purple Finch, Pine Siskin and Boreal Chickadee.

For more info, check out the full article here.