CONCORD, N.H. (AP) – New Hampshire’s official state butterfly, the endangered Karner blue, is making a comeback.

Karner blues disappeared due to habitat loss, but this summer, Fish and Game biologists released more than 1,000 captive-raised Karner blues into the pine barrens of the Concord Heights.

Biologists monitoring the area found Karner blues at all stages of development – a sign that they are reproducing successfully.

The repopulation program is a joint effort by Fish and Game, New Hampshire Army National Guard, U.S. Fish and Wildlife Service and Concord.

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