But the fight quickly spread. It is the English sparrow's way of waking up; his way of whetting his appetite for breakfast; his way of digesting his dinner; his way of settling his supper—his normal waking way.
To the clatter of voices was added the flutter of wings; for the birds had begun to shift perches, and to exchange slaps as well as to call names—the movement setting toward the tree-tops. None of the sparrows had left the roost. The storm of chatter increased and the buzz of wings quickened into a steady whir, the noise holding its own with that of the ice-wagons pounding past. The birds were filling the top-most branches, a gathering of the clans, evidently, for the day's start. The clock in Scollay Square station pointed to five minutes to five, and just before the hour struck, two birds launched out and spun away.
The exodus had commenced. The rest of Boston was not stirring yet. It was still early; hardly a flush of warmth had washed the pearl. But the sparrows had many matters to attend to before all the milkmen and bakers got abroad: they must take their morning dust-bath, for one thing, in the worn places between the cobble-stones, before the street-sprinkler began its sloppy rounds.
There was a constant whirl out of the tree-tops now. Occasionally a bird flew off alone, but most of them left in small flocks, just as I should see them return in the evening. Doubtless the members of these flocks were the birds belonging to certain neighborhoods, those that nested and fed about certain squares, large door-yards, and leafy courts. They may indeed have been families that were hatched last summer.
The birds that left singly went away, as a rule, over the roofs toward the denser business sections of the city, while the bands, as I had noticed them come in at night, took the opposite course, toward Cambridge and Charlestown. Not more than one in a hundred flew south across the city.
Of course there are sparrows all over Boston. There is no street too narrow, too noisy, too dank with the smell of leather for them. They seem as numerous where the rush of drays is thickest as in the open breathing-places where the fountains play. They are in every quarter, yet those to the east and south of the old burial-ground do not belong to the roost. Perhaps they have graveyards of their own in their sections, though I have been unable to find them. So far as I know, this is the only roost in or about Boston. And this is the stranger since so few of the total number of the Boston sparrows sleep here. A careful estimate showed me that there could not have been more than six or seven thousand in the roost. One would almost say there were as many millions in Boston. And where do these millions sleep? For the most part, each one alone behind his sign-board or shutter near his local feeding-grounds.
Now, why should the sparrows of the roost prefer King's Chapel Burial Ground to the Old Granary, a stone's throw up the street? I passed the Old Granary yard on my way to the roost and found the trees empty. I searched the limbs with my glass; there was not a sparrow to be seen. Still, the Granary is the less exposed of the two. It may not formerly have been so; but at present high sheltering walls bend about the trees like a well. Years ago, perhaps, when the sparrows began to roost in the trees at King's Chapel, the Old Granary elms were more open to the winds, and now force of habit and example keep the birds returning to the first lodge.
Back they come, no matter what the weather. There are a thousand cozy corners into which a sparrow might creep on a stormy night, where even the winds that know their way through Boston streets could not search him out. But the instinct to do as he always has done is as strong in the sparrow, in spite of his love for pioneering, as it is in the rest of us. He was brought here to roost as soon as he could fly, when the leaves were on and the nights delicious. If the leaves go and the nights change, what of that? Here he began, here he will continue to sleep. Let it rain, blow, snow; let the sleet, like a slimy serpent, creep up the trunk and wrap around the twigs: still he will hold on. Many a night I have seen them sleeping through a driving winter rain, their breasts to the storm, their tails hanging straight down, shedding every drop. If a gale is blowing, and it is cold, they get to the leeward of the tree, as close to the trunk as possible, and anchor fast, every bill pointing into the wind, every feather reefed, every tail lying out on the flat of the storm.
As I watched the bands starting from the tree-tops of the roost I wondered if they really crossed the river into Cambridge and Charlestown. A few mornings later I was again up early, hastening down to the West Boston Bridge to see if I could discover the birds going over. As I started out I saw bunches moving toward the river with a free and easy flight, but whether I reached the bridge too late, or whether they scattered and went over singly, I do not know. Only now and then did a bird cross, and he seemed to come from along the shore rather than from above the house-tops.
I concluded that the birds of the roost were strictly Bostonians. One evening, however, about a week later, as I was upon this bridge coming from Cambridge, a flock of sparrows whizzed past me, dipped over the rail to the water, swung up above the wall of houses, and disappeared toward the roost. They were on their way from Cambridge, from the classic elms of Harvard campus, who knows, to the elms of the ancient burial-ground.