P. M. – To bank of Great Meadows by Peter’s.
Cold northwest wind as yesterday and day before. Large skaters (Hydrometra) on a ditch.
Going across A. Clark's field behind Garfield’s, I see many fox-colored sparrows flitting past in a straggling manner into the birch and pitch pine woods on the left, and hear a sweet warble there from time to time. They are busily scratching like hens amid the dry leaves of that wood (not swampy), from time to time the rearmost moving forward, one or two at a time, while a few are perched here and there on the lower branches of a birch or other tree; and I hear a very clear and sweet whistling strain, commonly half finished, from one every two or three minutes. It is too irregular to be readily caught, but methinks begins like ar tohe tohe tchear, te tche tchear, etc., etc., but is more clear than these words would indicate. The whole flock is moving along pretty steadily.
There are so many sportsmen out that the ducks have no rest on the Great Meadows, which are not half covered with water. They sit uneasy on the water, looking about, without feeding, and I see one man endeavor to approach a flock crouchingly through the meadow for half a mile, with india-rubber boots on, where the water is often a foot deep. This has been going on, on these meadows, ever since the town was settled, and will go on as long as ducks settle here.
You might frequently say of a poet away from home that he was as mute as a bird of passage, uttering a mere chip from time to time, but follow him to his true habitat, and you shall not know him, he will sing so melodiously.
H. D. Thoreau, Journal, March 25, 1858
I hear a very clear and sweet whistling strain. See March 28, 1854 ("The fox-colored sparrow sings sweetly also.”)
The whole flock is moving along pretty steadily. See April 9, 1856 (“A flock of them - rapidly advancing, flying before one another, through the swamp.”) See also A Book of the Seasons, by Henry Thoreau, the Fox-colored Sparrow.

