One warm Sunday of a recent March, in the middle of my morning sermon, a ghostly rapping was heard through the meeting-house. I paused. _Tap, tap, tap!_ hollow and ominous it echoed. Every soul was awake in an instant. Was it a summons from--? But two of the small boys grinned; some one whispered "flicker"; and I gathered my ornithological wits together in time to save the pause and proceed with the service. After the people went home I found three flicker-holes in the latticework over the north windows. One of last year's tenants had got back that morning from the South, and had gone to work cleaning up and putting things to rights in his house, regardless of Sabbath and sermon. This approach of the flicker to domestic life and human fellowship is an almost universal movement among the birds. And no tendency anywhere in wild life is more striking. The four-footed animals are rapidly disappearing before the banging car and spreading town, yet the birds welcome these encroachments and thrive on them. One never gets used to the contrast in the bird life of uninhabited places with that about human dwellings. Thoreau tells his wonder and disappointment at the dearth of birds in the Maine woods; Burroughs reads about it, and goes off to the mountains, but has himself such an aggravated shock of the same surprise that he also writes about it. The few hawks and rarer wood species found in these wild places are shy and elusive. More and more, in spite of all they know of us, the birds choose our proximity over the wilderness. Indeed, the longer we live together, the less they fear and suspect us. II Using my home for a center, you may describe a circle of a quarter-mile radius and all the way round find that radius intersecting either a house, a dooryard, or an orchard. Yet within this small and settled area I found one summer thirty-six species of birds nesting. Can any cabin in the Adirondacks open its window to more voices--any square mile of solid, unhacked forest on the globe show richer, gayer variety of bird life? [Illustration: "A very ordinary New England 'corner.'"] The nightingale, the dodo, and the ivorybill were not among these thirty-six. What then? If one can live on an electric-car line, inside the borders of a fine city, have his church across the road, his blacksmith on the corner, his neighbors within easy call, and, with all this, have any thirty-six species of birds nesting within ear-shot, ought he to ache for the Archæopteryx, or rail at civilization as a destroyer? There is nothing remarkable about this bit of country. I could plant myself at the center of such a circle anywhere for miles around and find just as many birds. Perhaps the land is more rocky and hilly, the woods thicker, the gardens smaller here than is common elsewhere in eastern Massachusetts; otherwise, aside from a gem of a pond, this is a very ordinary New England "corner."