On the way a male sang and showed himself. Now, too, I discovered for the first time that there were tupelo-trees among the large oaks and walnuts; much smaller than they, and for that reason, it is to be supposed, not noticed in my three previous passages along the avenue. They are particular favorites of mine, and I made them sincere apologies. In another place was a patch of what I knew must be the fragrant sumach, something I had wished to see for many years: low, upright shrubs, yet resembling poison ivy so closely that for a minute I shrank from gathering a specimen, although I was certain beyond a peradventure that the plant was not poison ivy and could not be noxious to the touch; just as people in general, through force of early instruction and example (miscalled instinct), shiver at the thought of handling a snake, though it be of some kind which they know to be as harmless as a kitten. While in chase of the cerulean, also, I had stumbled on several bunches of cancer-root (_Conopholis_), rising out of the dead leaves, a dozen or more of stems in each close bunch; queer, unwholesome-looking, yellowish things, reminding me of ears of rice-corn, so called. I had never seen the plant till the day before. The next morning my course was beyond discussion or argument. I must go again to Lincoln Heights. The thought of the female cerulean warbler and her nest would not suffer me to do anything else. But for that matter, I should probably have taken the same path had I never seen her. The trees, the prospects, and the general birdiness of the place were of themselves an irresistible attraction. On the way I skirted a grove of small pines, standing between the road and the edge of Cedar Creek ravine: dull, scrubby trees, like pitch-pines, but less bright in color; of the same kind as those amid which, on Cameron Hill and Lookout Mountain, in Tennessee, there had been so notable a gathering of warblers the year before. _Pinus pungens_, Table Mountain pine, I suppose they were, though it must be acknowledged that I was never at the pains to settle the point. Here at Natural Bridge I had found all such woods deserted day after day, till I had ceased to think them worth looking into. Now, however, as I idled past, I caught the faint sibilant notes of a bird-song, and stopped to listen. Not a blackpoll’s, I said to myself, but wonderfully near it. And then it flashed into my mind what a friend had told me a few years before. “When you hear a song that is like the blackpoll’s, but different,” he had said, “look the bird up. It will most likely be a Cape May.” He was one of the lucky men (almost the only one of my acquaintance) who had heard that rare warbler’s voice. I turned aside, of course, and made a cautious entry among the pines. The bird continued its singing. Yes, it was like the blackpoll’s, but with a _zip_ rather than a _zee_. Nearer and nearer I crept, inch by inch. If the fellow _were_ a Cape