Jeff Stanfield & Andy Shaver are joined by Dr. Philip Lavretsky, who is a professor at the University of Texas at El Paso. They discuss the pintail decline and the northern expansion of the Mexican Tree duck, what forced male ducks manifest bright colors, human impact on where waterfowl migrate, and what the first duck might have looked like millions of years ago.
Episode #794: Guide’s Round Table
Episode #793: Jack Zimmerman
Episode #792: David Schuessler
BONUS EPISODE: NFL Week 11 Pick ‘Em - Steve Barber
Episode #791: Trevor Austin & Stefan Schiefelbein
BONUS EPISODE: NFL Week 10 Pick 'Em - Logan Buehler
Episode #790: Chris Williams
Episode #789: Just for Grins
Episode #788: Jimmy Watson
BONUS EPISODE: NFL Week 9 Pick 'Em - Logan Pyeatt
Episode #787: Canada Recap, Halloween, & the Trade Deadline
Episode #786: Ashur Tolliver
BONUS EPISODE: NFL Week 8 Pick 'Em - Jessy Shaver
Episode #785: Jessy Shaver
Episode #784: World on Fire pt. 6
BONUS EPISODE: NFL Week 7 Pick 'Em - Jacob Britton
Episode #783: Kaleb Kahue
Episode #782: Josh Raggio
BONUS EPISODE: NFL Week 6 Pick 'Em - Tony Stanfield
Episode #781: Jeff Coats
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