Global warming may affect bird migrationby Cathy Wurzer, Minnesota Public Radio
St. Paul, Minn. — Fall is migration season for thousands of of bird species. Some bird experts say that global warming is changing the migration patterns of those birds.
MPR's Cathy Wurzer talks with migratory bird expert Scott Weidensaul, author of "Of a Feather: A brief History of American Birding," about this phenomenon.
- Morning Edition, 09/21/2007, 7:50 a.m.