Excited nature lovers flocked to a tiny town from all across the state of Vermont last September, wildlife officials said. They all came to see one rare sight: a marbled godwit. The spotting on Sept. 19 in North Hero was a significant moment for birders in the area. It was the second time a marbled godwit was reported in Vermont during the past decade, according to eBird, a bird sighting database ran by the Cornell Lab of Ornithology. “The godwit in North Hero was a rare and exciting find, the kind of ‘vagrant’—or bird outside of its usual range—that gives local birders a chance to see a new s…