Certain birds have disappeared from our neighborhood within my memory. I remember when the whippoorwill could be heard in Sweet Auburn. The night-hawk, once common, is now rare. The brown thrush has moved farther up country. For years I have not seen or heard any of the larger owls, whose hooting was once of my boyish terrors. The cliff-swallow, strange emigrant, that eastward takes his way, has come and gone again in my time. The bank-swallows, wellnigh innumerable during my boyhood, no longer frequent the crumbly cliff of the gravel-pit by the river. The barn-swallows, which once swarmed in our barn, flashing through the dusty sun-streak of the mow, have been gone these many years. My father would lead me out to see them gather on the roof, and take counsel before their yearly migration, as Mr. White used to see them at Selborne. _Eheu fugaces!_ Thank fortune, the swift still glues his nest, and rolls his distant thunders night and day in the wide-throated chimneys, still sprinkles the evening air with his merry twittering. The populous heronry in Fresh Pond meadows has wellnigh broken up, but still a pair or two haunt the old home, as the gypsies of Ellangowan their ruined huts, and every evening fly over us riverwards, clearing their throats with a hoarse hawk as they go, and, in cloudy weather. scarce higher than the tops of the chimneys. Sometimes I have known one to alight in one of our trees, though for what purpose I never could divine. Kingfishers have sometimes puzzled me in the same way, perched at high noon in a pine, springing their watchman's rattle when they flitted away from my curiosity, and seeming to shove their top-heavy heads along as a man does a wheelbarrow.