I not infrequently spy a hawk soaring calmly far away above the roof. Not only the small ones, like the sharp-shinned, but also the larger, wilder species come, and winding up close to the clouds, circle and circle there, trying apparently to see some meaning in the maze of moving, intersecting lines of dots below yonder in the cracks of that smoking, rumbling blur.
In the spring, from the trees of the Common, which are close, but, except for the crown of one noble English elm, are shut away from me, I hear an occasional robin and Baltimore oriole. Very rarely a woodpecker will go over. The great northern shrike is a frequent winter visitor, but by ill chance I have not been up when he has called at the roof.
One of these fiend birds haunts a small court only a block away, which is inclosed in a high board fence, topped with nails. He likes the court because of these nails. They are sharp; they will stick clean through the body of a sparrow. Sometimes the fiend has a dozen sparrows run through with them, leaving the impaled bodies to flutter in the wind and finally fall away.
In sight from my roof are three tiny patches of the harbor; sometimes a fourth, when the big red-funneled liner is gone from her slip. Down to the water of the harbor in flocks from the north come other winter visitors, the herring and black-backed gulls. Often during the winter I find them in my sky.
One day they will cross silently over the city in a long straggling line. Again they will fly low, wheeling and screaming, their wild sea-voices shrill with the sound of storm. If it is thick and gray overhead, the snow-white bodies of the herring-gulls toss in the wind above the roofs like patches of foam. I hear the sea—the wind, the surf, the wild, fierce tumult of the shore—whenever the white gulls sail screaming into my winter sky.
I have never lived under a wider reach of sky than that above my roof. It offers a clear, straight, six-minute course to the swiftest wedge of wild geese. Spring and autumn the geese and ducks go over, and their passage is the most thrilling event in all my bird calendar.
It is because the ducks fly high and silent that I see them so rarely. They are always a surprise. You look, and there against the dull sky they move, strange dark forms that set your blood leaping. But I never see a string of them winging over that I do not think of a huge thousand-legger crawling the clouds.
My glimpses of the geese are largely chance, too. Several times, through the open window by my table, I have heard the faint, far-off honking, and have hurried to the roof in time to watch the travelers disappear. One spring day I was upon the roof when a large belated flock came over, headed north. It was the 20th of April, and the morning had broken very warm. I could see that the geese were hot and tired. They were barely clearing the church spires. On they came, their wedge wide and straggling, until almost over me, when something happened. The gander in the lead faltered and swerved, the wedge lines wavered, the flock rushed together in confusion, wheeled, dropped, then broke apart, and honking wildly, turned back toward the bay.
It was instant and complete demoralization. A stronger gander, I think, could have led the wedge unbroken over the city to some neighboring pond, where the weakest of the stragglers, however, must have fallen from sheer exhaustion.
Scaling lower and lower across the roofs, the flock had reached the center of the city and had driven suddenly into the roar and confusion of the streets. Weary from the heat, they were dismayed at the noise, their leader faltered, and, at a stroke, the great flying wedge went to pieces.