North America Has Lost 3 Billion Birds, Scientists Say

Researchers estimate that the bird population has fallen by a quarter since 1970. More than 90% of the loss can be attributed to just a dozen bird families, including sparrows, blackbirds and finches.(Image credit: Steven Mlodinow/EOL.org; Greg Lasley/EOL.org; dfwuw/EOL.org)
Source: NPR Health and Science - Category: Consumer Health News Authors: Source Type: news