Headwinds caused by warm weather a danger to migratory birds

0

li-nb-sandpiper

An unseasonably warm autumn in Nova Scotia could create a deadly challenge for some migratory birds, according to biologists.

http://www.cbc.ca/news/canada/nova-scotia/headwinds-caused-by-warm-weather-a-danger-to-migratory-birds-1.4375702?cmp=rss