The whip-poor-will is hardly a home builder. He just occupies a flat for the summer, a place that seems no more fit for a home than any other flat. Just as I often wonder how apartment-house dwellers find their way back at dinner-time, in spite of the bewildering sameness of the surroundings, so it seems to me quite miraculous that the whip-poor-will can find the way back to the eggs or young at daybreak. Nest there is none. It is simply a spot picked, seemingly, at random, on the brown last year’s leaves, or the bare rock of the pasture.

But the whip-poor-will has been here since early May, and till now has not offered to take an apartment. Yesterday, without doubt, he saw the summer coming and picked his site. By to-morrow or next day you might find the two eggs there—if you are a wizard. It takes such to find a whip-poor-will’s eggs. You might look at them and never see them, so well do they match the ground on which they lie,—more like pebbles than anything else, with their dull white obscurely marked with lilac and brownish-gray spots. I sometimes think the mother bird herself fails to find them and that may be one reason why whip-poor-wills do not seem to increase in numbers.

Like the whip-poor-will the scarlet tanager waits sight of the coming of summer before he begins his nest. It is odd that the two should have even this habit in common, for otherwise they are far apart. The tanager is essentially a bird of the daylight, his very colors born of the sun. I rarely hear him or see his scarlet flame until the sunlight is on his tree top to make him seem all the more vivid. Then as the day waxes, and the robins one by one cease their singing, he takes up their song and continues it, often until the robins return to the choir as the afternoon shadows lengthen. The tanager’s song is singularly like that of the robin, only more leisurely and refined. After you have become familiar with it you begin to feel that the robin is a very huckster of a soloist.

“Kill ’im, cure ’im, give ’im physic,” is what the early settlers thought the robin sang to them. It always seems to me as if he sang, “Cherries; berries; strawberries. Buy a box; buy a box.” You might translate the scarlet tanager’s song into either set of words but you would not. Instead, you would ponder long to find a phrase whose gentle refinement should express just the quality of it. Then I think you would give it up, as I always do, content to feel its pure serenity, which is quite beyond words.

The tanager is just about beginning the weaving of his home, which is as gentle and refined in structure as his song. You may see through it if you get just the right position from below, yet it is well built and strong, woven of slender selected twigs and tendrils, a delicate cup, just big enough to hold the three or four eggs of tender blue with their rufous-brown markings, and the olive-green mother bird. The tanager’s life is as open as the day, and as he watches southward from his pine tree top you may well mark the coming of summer by the beginning of that nest well out on a lower pine bough.

And if you are not fortunate enough to have a tanager in your pine grove you might well take the time from another bird, as different from the scarlet flame of the tree top as the tanager is from the whip-poor-will; that is the wood pewee. As the whip-poor-will loves the darkness and the tanager the bright sun of the topmost boughs of the grove, so the wood pewee loves the resinous depths of the pines, where in the hot twilight of a summer midday he pipes his cheerful little three-note song. Like the cicada, he seems to sing best when it is hottest, and the thought of his song inevitably brings to mind the drone of the summer-loving insect, the prattle of the brook at the foot of the hill, and the lazy dappling of the sunlight as it falls perpendicularly to the feathery fronds of the cinnamon ferns far below.

He who would find humming birds’ nests would do well to first take a course in hunting those of the wood pewee. The two seem to have the same type of mind when it comes to nest-building, though the wood pewee’s is five times the size of the other and proportionally easy to find. Each saddles his nest on a limb and covers it outside with gray lichens from the trees nearby, so that from below it looks like merely a lichen-covered knot. As the wood pewee loves to sing his song in the shadows of the upper levels of the deep pine wood, so he loves to look down as he sings upon his nest on a limb below, usually twenty or more feet from the ground.

Such humming birds’ nests as I have found have been made of fern wool or the pappus of the blooms of dandelions or other compositæ just compacted together and lichen-covered. The wood pewee builds of moss and fine fiber, grass and rootlets, using the lichen covering for the outside, as does the humming bird. It is a beautiful nest, a rustic home which perfectly fits the dead pine limb on which you often find it, and its surroundings, a nest as rustic as the grove and the bird.

These two, the tanager and the wood pewee, I know are already picking the limbs for their nests and having an eye out for available material, for I know that they have had the first word that summer is here. I got it myself from the southerly slope of Blue Hill, a spot to which I like to climb as the lookout goes to the cross-trees, whence the southerly outlook is far and you may sight the sails of spring or summer while yet they are hull down below the horizon of the season.

All creatures love to climb. Here along the rocky path the young gerardias have found a foothold, and put forth strange sinuate or pinnatifid leaves that puzzle you to identify them until you note the last year’s stalks and seed-pods, now empty but persistent. Exuberance and young life often take frolicsome ways of expending their vitality. When the gerardias are two months older, and have settled down to the growing of those wonderful yellow bells which fill the woodland with golden delight, their stem leaves will lose all this riot of outline and coloration and settle down to plain, smooth-edged green. The blossoms may need a foil, but will brook no rival on their own stem.