Mallards Mate with Other Ducks

Mallards are a very common duck that are easy to find. Find out why Bill thinks they may be an invasive species. 

Our sources for this episode include:

• Unflappable Facts About Mallards
  http://mentalfloss.com/article/78330/15-unflappable-facts-about-mallards
• Mallard duck facts
  http://www.softschools.com/facts/animals/mallard_duck_facts/587/
• Mallard
  https://www.allaboutbirds.org/guide/Mallard/lifehistory