Welcome back to "Animal Slander," the series where we take common expressions about animals and debunk them with science. Today on the show, we tackle "birdbrained" and to "eat like a bird" with biologists Corina Newsome and Alejandro Rico-Guevara. Follow Maddie and Emily on Twitter. Their usernames are @maddie_sofia and @emilykwong1234. Plus, send us your animal slander—and questions and praise—by emailing the show at shortwave@npr.org.