BOILING SPRING LAKES, N.C., Sept. 23 (AP) — Over the past six months, landowners here have been clear-cutting thousands of trees to keep them from becoming homes for the endangered red-cockaded woodpecker. The chain saws started in February, when the federal Fish and Wildlife Service put Boiling Spring Lakes on notice that rapid development threatened to squeeze out the woodpecker. The agency issued a map marking 15 active woodpecker “clusters,” and announced it was working on a new one that could potentially designate whole neighborhoods of this town in southeastern North Carolina as protected habitat, subject to more-stringent building restrictions....