Although very much more is now known of these seasonal movements of our birds than was but a few years ago, it is not yet, and probably never will be, possible to determine the “law” of migration, for the simple reason that the springtide northward and autumnal southward flight of our inland birds has not that element of regularity as to dates or method that has been so frequently insisted upon. They come and go, but beyond this we can be sure of nothing from year to year. Sooner or later, our warblers, thrushes, and fly-catchers come as the world grows green; sooner or later, as the meadows and upland grow drearily brown, these same birds depart. But if, as to birds collectively, we can not be positive in this matter of the time, place, and manner of migration, we can feel moderately confident of a return, summer after summer, of certain individual birds, if they have escaped life’s perils in the mean while. Says Dr. Robert Brown (Birds of Passage): “The individual swallow, it is now ascertained, returns from the Canaries or North Africa to the very spot on which it built its little mud mansion the previous summer; and, according to the observations of the celebrated Jenner, marked birds were caught at their old nests every year for three successive seasons.” I find the home hillside luxuriantly green to-day, although the first week of May has not yet passed. Even the tardy oaks are well in leaf, and from every nook and corner of the woods and fields there floats the merry song of a nesting bird. Among them, are there any friends of a year ago? Surely I recognize one. Long before sunrise on the morning of April 26th I heard a loud chatter near my chamber windows. There was no mistaking the creature that uttered it, and I knew, although it had rained violently all the night, and was still storming, that the house-wren had come back to his old castle on the post. I peeped through the shutter as soon as there was sufficient light, and there stood the little bird, braving a keen east wind and singing with all his might. Now, the day before there were no wrens near; not one was skulking along the hillside looking for nesting sites. Had there by chance been even a straggler ahead of time, as is not uncommon with many migratory birds, it would have been heard, if not seen, for wrens are never silent for a day, if indeed for any five minutes of it, unless asleep. Therefore I am confident that the plucky bird that I saw in the dawn of April 26th had been guided by the prominent landmarks, such as the river, meadows, and the wooded bluff, and had come directly to his home of the past summer, hastening, when once he started, to the inconspicuous box that is perched upon a pole close to my house, and hidden by two great locust-trees and a towering wild-cherry. No stranger wren while yet it was dark could have found the spot and proved himself so promptly at home, for early that same day, while yet alone, the bird commenced