ENTERPRISE, Ore. (AP) -- One of the gray wolves that have returned to Oregon has become the first in its pack to wear a radio collar.

Biologist said the 2-year-old male wolf was the first in the Wenaha pack to be captured and collared. The tracking device will provide a more accurate population estimate for the wolves and help monitor their breeding activity.

The Oregon Department of Fish and Wildlife has been monitoring the pack since 2006. The Wenaha pack has an estimated four adult wolves. Pups are possible but unconfirmed.

The Wenaha wolf pack is one of two known packs in Oregon. The other, the Imnaha pack, has three radio-collared wolves.

Last month, a trail camera caught images of six adults in the Imnaha pack, including the alpha female and four new pups.

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Information from: The (La Grande) Observer, http://www.lagrandeobserver.com/

Copyright 2010 The AP.