Carol was an environmentalist and PSU Master Gardener.  She worked on the Center Valley property for over a quarter of a century, please enjoy some of her 21st century magic.

As a prelude, this short movie captures slow motion video of insects visiting her wildflower patch.  I used a then new 2013 iPhone 5s, capable of recording an audio track and 720p video at 120 frames per second, a 4x slow down.  For comparison the first 14 seconds are shot at normal speed.  Your task is to identify the creatures vocalizing the two main background sounds: a bellow and a short whistle (answers in the credits).