Today we speak with evolutionary biologist David George Haskell about how birds developed their songs. Join Catherine Greenleaf, a certified wildlife rehabilitator with 20 years of experience rescuing and rehabilitating injured wildlife, for twice-monthly discussions about restoring native habitat and helping the birds in your backyard. Access the BIRD HUGGER Newsletter here: www.birdhuggerpodcast.com. Send your questions about birds and native gardening to birdhuggerpodcast@gmail.com. (PG-13) St. Dymphna Press, LLC.