February 6, 2011 12:00 AM

On the trail of elusive Texas whooping cranes

AUSTWELL, Texas - The Aransas National Wildlife Refuge is the winter home of the whooping crane, a bird on the verge of extinction. I drove 20 miles off the main road to get there. I climbed a tall observation tower. In the distance, at least four football fields away, were, or at least seemed to be, two white dots in the waving reeds.

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