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