- Peterson Online: http://www.houghtonmifflinbooks.com/peterson/podcast-family.shtml
- This Birding Life: http://www.birdwatchersdigest.com/podcasts/index.php
- The Author's Spotlight: http://www.birdwatchersdigest.com/podcasts/index.php
- Ray Brown's Talking Birds: http://www.birdwatchersdigest.com/podcasts/index.php
The last three are on the same page, which is why I put the same link for them. Hope you enjoy.
Happy birding,
Mr. Bird