Four genera of mayflies are at peak emergence this week—a brief window when the river itself is in crisis. Flow has dropped nearly half in just seven days , from 738 to 383 cubic feet per second, shrinking channels at the very moment when Siphlonurus and Maccaffertium are transforming from nymphs into adults. The larvae are compressed into shallower pockets; the trout, herons, and swallows that have timed their whole season to this abundance face a feast that is suddenly difficult to reach. Two tributaries feeding this main channel are already impaired, and the stress of drought-driven low flow will compound that degradation. The mismatch between this ecological window and the water's retreat is a reminder that even synchronized systems can unravel when climate and hydrology shift out of phase.
Hummingbirds time their arrival with first flowers
June 6, 2026
The air above Cambridge Village holds a different quality in these longest days of early summer. Light stretches thin and golden through the canopy, and somewhere in that brightness, a ruby-throated hummingbird hovers at the edge of a wetland clearing. The sound arrives before the sight: a soft thrumming that cuts through the morning stillness, then stops as suddenly as it began. Ruby-throated hummingbirds have been crossing the Gulf of Mexico and moving north through Vermont for weeks now, their timing calibrated to the opening of flowers. The males arrive first, claiming territories along streams and forest edges where nectar sources concentrate. Here near the village, they find what they need most: the bright yellow blooms of Great St. John's wort rising from wet meadow edges. These native wildflowers open their four-petaled faces just as the hummingbirds settle into breeding territories, each bloom offering a shallow cup of nectar accessible to a needle-thin bill. Great St. John's wort grows in the margins between forest and wetland, its stems reaching waist-high and crowned with clusters of yellow flowers that seem to glow against the green backdrop. Each flower opens for just a day or two, but the plant produces new blooms in sequence through the early summer weeks. This steady progression of fresh nectar coincides with the hummingbirds' most energy-intensive period: establishing territories, building nests, and feeding young. A single plant might host dozens of visits from the same bird over several days as it works through the flower clusters from bottom to top. The hummingbird's approach to each bloom follows the same precise pattern. It hovers six inches away, assessing the flower's freshness by sight, then darts forward to probe the shallow nectary at the base of the petals. The visit lasts three seconds, maybe four. Its bill reaches past the prominent yellow stamens to find the sweet liquid that fuels its hyperactive metabolism. Between flowers, it perches on a thin branch or dead stem, scanning for competitors and listening for the calls of its mate from the nest hidden in the fork of a nearby maple. This synchrony between bird and flower represents more than convenient timing. The Great St. John's wort benefits from the hummingbird's visits, though not in the way most flowering plants do. Hummingbirds carry little pollen on their smooth bills and feathers, but their presence at the flowers attracts other pollinators. Bees and small flies, drawn by the movement and activity around the blooms, arrive to find fresh pollen and nectar. The hummingbird's feeding creates a beacon that signals flower quality to insects better equipped for pollination. As you listen for that distinctive wing-beat somewhere above, notice how the light filters differently now in these peak summer days. The canopy has thickened since spring, creating a mosaic of bright clearings and deep shade. In the wetland edges where the St. John's wort blooms, that golden morning light catches the yellow petals and holds them like small lanterns against the darker water beyond.
Red trillium opens to its dark pollinators
May 22, 2026
The forest floor in Underhill holds its breath between seasons. Above, sugar maple leaves stretch wide in their first full green, but below, where filtered light barely reaches the leaf litter, only the earliest flowers dare to open. Here, among the emerging jack in the pulpit and scattered violets, red trillium lifts its three-petaled bloom just inches above its whorl of leaves. The flower opens dark red, almost burgundy, with a scent that stops you short if you lean close. This is not the sweetness that draws bees and butterflies. Red trillium calls to different visitors entirely. The odor carries notes of decay, faint but unmistakable, designed for creatures that make their living among fallen logs and decomposing matter. Fungus gnats rise from the damp soil nearby. Small carrion flies, barely visible unless they catch the light, arrive throughout the day. They come because the flower speaks their language. These tiny flies, many no larger than a pinhead, navigate by scent toward what they hope might be rotting flesh or fermenting fungi. Instead they find red trillium's deception. The flower offers no carrion, but it provides something else the flies need: pollen rich in proteins. As they crawl across the stamens, yellow pollen grains stick to their bodies and legs. When they visit the next trillium, drawn by the same false promise of decay, they brush pollen onto the waiting stigma. The flower has turned the flies' search for death into a delivery of new life. This partnership plays out across the understory, where few other blooms compete for attention. While most wildflowers wait for warmer days and more abundant pollinators, red trillium blooms early and alone, claiming the exclusive attention of flies that emerge with the first consistent warmth. The exchange happens quietly, without the obvious drama of bees working apple blossoms or hummingbirds at cardinal flower. You might walk past a dozen red trilliums and never notice the tiny flies at work. But if you crouch low and watch one flower for several minutes, you will see them. A fungus gnat lands, walks deliberately across the petals, then disappears into the forest duff. Another arrives from a different direction. The flower's strategy unfolds in small, patient movements. Each visit builds toward the fruit that will form by midsummer, heavy with seeds that ants will eventually carry to new ground. Right now, though, the work is simpler. Somewhere near your feet, if you are walking these woods, another red trillium opens its dark petals to the filtered light, releasing its strange perfume into the still air between the trees.
