Friday was the first day of spring, and as life begins to resurface, we join With Good Reason tonight at 6:00 for a look at some of the issues facing two living things--Monarch butterflies and birds. In "The Monarch Massacre," host Sarah McConnell explores the dwindling number of this butterfly "king" due to threats to its main food source. She'll also talk to an author who examines how bird songs are changing in urban environments. This episode also covers young volcanoes along eastern North America, the use of oysters as living reefs and how radar helps to track songbird migration.
Then at 7:00, tune in for an island-themed BackStory with the American History Guys episode titled "Island Hopping." This program explores teaching the history of the Hawaiian islands, the Puerto Rican fight for independence, Mormon followers who settled on Michigan's Beaver Island and the stories of Asian immigrants held on San Francisco's Angel Island. Finally, the Guys answer one of life's most pressing questions: why is that orange salad topping called Thousand Island dressing?