The Gray Hairstreak (strymon melinus), about the size of a quarter,  is one of the more common North American butterflies. After landing, it often rubs its hind wings together — making the wings look like a bobbing head because of the orange-and-black eye spot and tails — to scare off potential predators.

Metadata: 

Camera: Canon Powershot SX 120 IS

Lens: NA

Aperture: F/2.8

Shutterspeed: 1/800

ISO: 80

Light Source: Natural

Light Modifier: NA