Out in the sun, a goldfinch is busy, while down below something stranger is going on. Edward Thomas's «The Hollow Wood» runs to just fourteen lines, yet it divides the world into two layers: a bright, noisy surface and a pale, sunken wood beneath it. The two meet only through sound. Nothing is explained. The poem looks, and what it sees is a place where life and death are so tangled together that it is hard to say which is winning.
The first stanza turns on a single startling image: "birds swim like fish." A hollow is a dip in the land, and Thomas treats this one as if it were filled with water. The birds moving "to and fro, far below" are watched from above, as though through the surface of a pond. Then the image turns uncomfortable. These are "fish that laugh and shriek." Real fish are silent, and these make a noise closer to hysteria than song. The dash before that line makes us stop and take in the oddity. The word "hollow" does a lot of work too. It suggests emptiness as well as a dip in the ground, and "pale" drains the colour from it. Because "wood" ends both the third and the last line of the stanza, the stanza closes around the place like a pool.
The second stanza moves from movement to decay. "Lichen, ivy, and moss / Keep evergreen the trees / That stand half-flayed and dying" contains a quiet paradox. The wood looks green, but the green belongs to the growths clinging to the trees, not to the trees themselves. "Flayed" is the violent word here, since it means skinned, and it makes the bark look like a wound. Then comes the most memorable picture: "the dead trees on their knees." The personification is exact and ambiguous. Kneeling might mean prayer, exhaustion or defeat, and Thomas does not choose. He even tucks the dead trees into a soft bed of "dog's-mercury and moss", a plain, earthy plant name that sits oddly beside such a bleak image.
The sound of the poem matters as much as its pictures. It opens with a chiming pair, "flits" and "twits", so that the goldfinch's call is built into the rhyme. After that the rhyming loosens: "fish" and "shriek" do not match, and the only echo is inside a line, "fro" and "below", which rocks like water. The second stanza is far tighter. Its rhymes mirror one another around the word "dying": moss, trees, dying, knees, moss. "Moss" even rhymes with itself, so the stanza circles back to where it began, like something that cannot climb out. The rhythm is uneven, with short lines and a speech-like irregularity, and the last two lines run longer, as if stretching out to follow a falling sound.
That falling is the poem's final trick. "The bright twit of the goldfinch drops / Down there as he flits on thistle-tops." The bird itself never descends. It stays up in the sun, and only its sound drops into the wood, as if sound were a small physical object dropped into water. The last line also echoes the first stanza's "flits" and "thistle-tops", so the poem ends where it began, with the bird still high and the wood still below. The rhyming couplet "drops" and "tops" snaps the poem shut, but it settles nothing. Is the bright note a comfort to the dying trees, or is it simply indifferent to them? The contrast between "bright" and "pale" leaves that open.
What makes the poem worth reading is this restraint. Thomas never says what he feels about the wood. He lets one metaphor, birds as fish, turn an ordinary stretch of woodland into something uncanny, and he lets the reader supply the unease. In fourteen short lines he offers both a sharp piece of observation and a puzzle about how living and dying things share the same space.