Every birdwatcher will probably admit that he or she went bad on warblers, those brightly colored jewels of the woodlands. And every birder will also admit something else—he, or she, went mad on warblers, those utter vexations of the woodlands. Let me explain. The annual spring warbler migration is timed to coincide with the emergence of forest insects that help fuel the songbird's travels north, and the emergence of the bugs, many of them caterpillars, is timed to coincide with the emergence of leaves on which the proto-lepidopterans feed. The problem is that when the leaves come out, the warblers are no longer easy to spot. In fact, all those bright colors become a kind of camouflage, and this conundrum can put a birder in the insane asylum. Nature can be cruel like that, especially when all you get is a brief and incomplete look... or photograph. From the necklace, it's either a Canada or a Magnolia warbler... but which one? Fortunately, I got a second, better shot. It's definitely a Magnolia, and probably the very bird I got a great look at earlier. And, no doubt, my last great look.