Vaux’s swifts, a group of migrating birds are known for the dazzling displays they create as they funnel into brick chimneys to roost for the night. But as some brick chimneys are being replaced and demolished these birds are losing their habitat. Our environmental reporting partner EarthFix has the story.

In this episode of SciTech Now, the creation of the Vaux’s Swifts new habitat; a look into Darwin’s unseen manuscripts; Calwave Power Technologies is harnessing the renewable power of ocean waves to produce both electricity and freshwater; and Penn State students predicting perfect sunsets.