pressing on towards the hills but they left their songs behind them, as it were, to be sung by the other birds. In the pastures and cultivated fields the chipping sparrows, newly arrived from the South, took up the trill with an accent of their own, and all the pine warblers sang it, each with an individuality that slightly but clearly marked him from his fellow. I think all birds show this slight but definite individuality in manner and voice and are probably known to their neighbors of the same clan, as we are, each by his voice. And even so simple and definite a thing as the pine warbler's song may be varied by the individual singer from time to time. I heard one fine bird singing in the stereotyped form. As he sang a flicker flicked in the distance. Whereupon the pine warbler sang again, the same trill but with a tittering twang about it that just jocosely imitated the flicker. I saw no other warbler or other bird near enough to be the beneficiary of this joke. He did it just for himself, and his motions as he flew over to the next tree seemed a visible chuckle that ended in a saucy flirt of the two white tall feathers which are one distinguishing mark of the bird in flight. [Illustration: Dusty Miller blossoming among the Cape Dunes] Other warblers I noted none. The woods seemed given up for the occasion to Dendroica vigorsi. The wood warblers disappeared at the border line of the open fields at Wakeby and the home-loving birds appeared again in numbers, robins, bluebirds, swallows and the sparrow kind. The downy woodpeckers and flickers, to be sure, passed to and from both zones, though they, too, seemed to love the trees of the open rather than those of the deeper wood, but in the main the boundary line, as usual, was quite distinctly marked. The noon sun was high and the north wind's chill had been fairly combed out of it by the bristly harrows of a thousand pine tops. In its place was a warm, resinous fragrance, an incense to the season. The heart of the Cape forest is passed at Wakeby and the blue waters of a great lake lap in crystal clearness on the clean sands. The Cape sands are a vast water filter and strain out of the streams all sediment. The ponds are liquid crystals in narrow settings of pale gold. Someone told me it was only eight miles across the Cape from East Sandwich to Cotuit. Perhaps it is as the crow flies, but I could not clear the scrub as they do and I found the roads adapted to delightful leisure. No wonder the Cape folk do not hurry. How could they? The narrow, gray ribbon of road strolled with me through what seemed eight miles of forest before we reached Wakeby.