Photos: In pursuit of the Karner blue

The Enterprise — Michael Koff

Serious work: Dan Szczepanik and Devin Morse, both Farnsworth Middle School students, keep an eye out for pretend Karner blue butterflies, like the one in the foreground, as they record their counts at the Pine Bush Preserve. See related story.

The Enterprise — Michael Koff

Pencils in hand, and clipboards and calculator at the ready, Shreyas Nampoothiri and Jack Hickey look intently at a gauge in order to accurately record temperature as they participate with Farnsworth Middle School classmates in a project at the Pine Bush Preserve, learning how to count Karner blue butterflies.

The Enterprise — Michael Koff

Walking the line: Farnsworth Middle School students, from front to back, Brittany Celebucki, Arielle Isaacs, and Mia Roffman, walk a transect to count the number of mock Karner blue butterflies they see. Each pole is divided into four sections; the kids count how many butterflies they see in each section.