Look at all those mouths to feed! Marjorie Powell introduces the beautiful barn swallow. You may see these small birds ...

Owls have inspired new noise reduction technology. The silent flight of the aerial predators is possible because their skin and feathers dampen sound by absorbing high- and low-frequency flight ...

Owls have inspired new noise reduction technology. The silent flight of the aerial predators is possible because their skin and feathers dampen sound by absorbing high- and low-frequency flight noise.