Owling involves nothing more than crouching in odd locations, staring into the distance and acting like an owl for a photograph, Washington's WTOP-FM reported Monday.
Yet, the Facebook page for the photo craze has 16,548 "Likes," and has photo and video posts from around the world, including the United States, Australia and Britain.
The trend has also taken over Twitter and YouTube.
Owling comes after another odd activity, "planking," in which people take pictures of themselves in random places lying rigidly face down and post them on the Internet.
Owlers list themselves as a professional sports team, and have created their own online community called "Owl Posts," a place just for owlers.