When I reached the upper end of this weedy bar, at about 3 P.M., this warm day, I noticed some light-colored object in mid-river, near the other end of the bar. At first I thought of some large stake or board standing amid the weeds there, then of a fisherman in a brown Holland sack, referring him to the shore beyond. Supposing it the last, I floated nearer and nearer until I saw plainly enough the motions of the person, whoever it was, and that it was no stake. Looking through my glass thirty or forty rods off, I thought certainly that I saw C., who had just bathed, making signals to me with his towel, for I referred the object to the shore twenty rods further. I saw his motions as he wiped himself,—the movements of his elbows and his towel. Then I saw that the person was nearer and therefore smaller, that it stood on the sand-bar in midstream in shallow water and must be some maiden [in] a bathing-dress,— for it was the color of brown holland web,—and a very peculiar kind of dress it seemed. But about this time I discovered with my naked eye that it was a blue heron standing in very shallow water amid the weeds of the bar and pluming itself. I had not noticed its legs at all, and its head, neck, and wings, being constantly moving, I had mistaken for arms, elbows, and towel of a bather, and when it stood stiller its shapely body loked like a peculiar bathing-dress. I floated to within twenty-five rods and watched it at my leisure,. Standing on the shallowest part of the bar at that end, it was busily dressing its feathers, passing its bill like a comb down its feathers from base to tip. From its form and color, as well as size, it was singularly distinct. Its great spear-shaped head and bill was very conspicuous, though least so when turned toward me (whom it was eyeing from time to time). It coils its neck away upon its back or breast as a sailor might a rope, but occasionally stretches itself to it full height, as tall as a man, and looks around and at me. Growing shy, it begins to wade off, until its body is partly immersed amid the weeds,—potamogetons,—and then it looks more like a goose. The neck is continually varying in length, as it is doubled up or stretched out, and the legs also, as it wades in deeper or shallower water.
Suddenly comes a second, flying low, and alights on the bar yet nearer to me, almost high and dry. Then I hear a note from them, perhaps of warning,—a short, coarse, frog-like purring or eructating sound. You might easily mistake it for a frog. I heard it half a dozen times. It was not very loud. Anything but musical. The last proceeds to plume himself, looking warily at me from time to time, while the other continues to edge off through the weeds. Now and then the latter holds its neck as if it were ready to strike its prey,—stretched forward over the water,—but I saw no stroke. The arch may be lengthened or shortened, single or double, but the great spear-shaped bill and head are ever the same. A great hammer or pick, prepared to transfix fish, frog, or bird. At last, the water becoming too deep for wading, this one takes easily to wing,—though up to his body in water—and flies a few rods to shore. It rather flies, then, than swims. It was evidently scared. These were probably birds of this season. I saw some distinct ferruginous on the angle of the wing. They they stood in the midst of the open river, on this shallow and reedy bar in the sun, the leisurely sentries, lazily pluming themselves, as if the day were too long for them. They gave a new character to the stream. Adjutant they were to my idea of the river, these two winged men.
You have not seen our weedy river, you do not know the significance of its weedy bars, until you have seen the blue heron wading and pluming itself on it. I see that it was made for these shallows, and they for it. Now the heron is gone from the weedy shoal, the scene appears incomplete. Of course, the heron has sounded the depth of the water on every bar of the river that is fordable to it. The water there is not so many feet deep, but so many heron’s tibiae. Instead of a foot rule you should use a heron’s leg for a measure. If you would know the depth of the water on these few shoalest places of Musketaquid, ask the blue heron that wades and fishes there. In some places a heron can wade across.
How long we may have gazed on a particular scenery and think that we have seen and known it, when, at length, some bird or quadruped comes and takes possession of it before our eyes, and imparts to it a wholly new character. The heron uses these shallows as I cannot. I give them up to him.