Power line nests put US ravens in pole position for prey

Ravens in the US are building their nests on electricity power lines and using the height to target their prey, according to new research. The scientists say the majority of ravens in the study area were now living on transmission poles and posed a bigger threat to endangered species. via Pocket http://www.bbc.co.uk/news/science-environment-25656289#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa