Greenwich Time: Imagine never again hearing the ethereal four-syllable call of the veery, that small forest thrush that sings in the summertime in Greenwich's woodlands. Try to picture life in Greenwich without the blue-winged warbler, a favorite of local bird watchers, or the dunlin -- a shorebird seen in both spring and fall at Greenwich Point. It could happen. According to a recent report by the National Audubon Society, these birds are just a few of the local species that may disappear from Greenwich and its...