Apparently, this happens all the time?

A while back, I posted a video of penguins chasing a butterfly.  Apparently, this was not a one time occurrence.  Here is another video of a similar incident caught on film.  Besides being just plain fun, this video shows (A) why we call the main chasing species “Rockhopper Penguins” and (B) how big King Penguins are compared to most other species.