Blink once and you miss the fox. That small premise drives Dave Bonta's "Nightfall," and the poem keeps pushing it until a blink erases not just an animal but a whole landscape. A sighting of a gray fox on a stonepile becomes a meditation on how thin our hold on the visible world is, and on what is left when the eyes give out.
The first two stanzas work like a pair of camera shutters. "Blink once" removes the fox. "Blink again" removes "the trees," then "the soil & everything in it." The repetition is plain, almost childlike, which makes the escalation startling. The poem never explains why the world should vanish, only that it does, as fast as an eyelid. The title lets us infer dusk, light draining until nothing can be held in sight, but the poem prefers a jolt to a gradual fade. Even the short line "is gone" is a small vanishing, left alone at the end of its stanza.
Then come two words in parentheses: "say biomass / say overburden." They are the coldest vocabulary in the poem. "Biomass" counts living woods as tonnage, and "overburden" is a mining term for the soil and rock stripped away to reach something valuable beneath. The speaker seems to be trying out labels for what has just disappeared, in the language of resources rather than wonder. The poem doesn't comment, but the contrast between the fox and these clinical terms leaves a quiet unease. Judging by the imagery, it is hard not to hear an ecological worry in them.
With sight gone, the poem turns to hearing. "Whatever's left of the world / gets swept up in the wings / of a drumming grouse." The phrase "cellar hole of sound" is the most inventive image here. A cellar hole is what remains of a house after the house has gone, a hollow in the ground. Applied to sound, it suggests an emptiness shaped like something that was once there, a sound with a cavity at its center. "Palpitation" then moves the image into the body. The drumming becomes a heartbeat, though whose heart it is (the bird's, the listener's, the woods') is left open.
The fourth stanza is a single extended simile: "some massive & / resilient thing" dropped from a great height, "rebounding each time / a little less." The line breaks seem to enact the bounces, with the lines shortening and stuttering toward "what sounds like / an acceleration." The paradox is exact. A bouncing object that loses energy bounces more and more quickly, so decay is heard as speeding up. Anyone who has heard a grouse drum knows the effect, a slow thump that gathers into a whir. The poem's hedge, "sounds like," admits that this acceleration is only an impression. Underneath it the thing is running down.
The last line returns to parentheses: "(nothing but the onrush of inertia)." It echoes the earlier aside and gives the poem a frame, a human voice muttering technical terms beneath the lyric one. "Onrush" suggests forward motion, while inertia is really a thing's tendency to keep doing what it was already doing, so the phrase pulls two ways. "Nothing but" can read as deflating, since it is only physics. It can also read as consoling, since the world's persistence needs no explanation. Having just made physics feel like a pulse, the poem may be wanting both.
Formally, "Nightfall" is free verse with no rhyme and short, breathless lines. The ampersands keep the pace quick and informal, and enjambment ("standing on a stonepile at / the edge of the woods") makes us hurry across the line breaks as if we too were afraid of blinking. The sound patterning is subtler. "Palpitation" and "acceleration" share a rhythm and ending, which links the heartbeat to the speeding drumming.
The poem is worth studying for how much it fits into so few lines. It moves from sight to sound, from the living to the measured, and from a vivid animal to an abstract law, while staying anchored in one evening at the edge of a wood. It shows that a nature poem can carry ecological unease without lecturing, and that attention, like a blink, can lose a world or catch what is left of it.