The Moth Ledger

No 214 · MMXXVI season

Alder Fen station · est. 2019

The Collector

One person, one lamp, and a long argument with the dark — conducted politely, nightly, from April to September.

Who keeps the ledger

The Moth Ledger is kept by E. Marlowe, who came to the fen in 2019 with a borrowed actinic tube and the firm intention of staying one season. Seven seasons later the archive holds 600-plus nights of counts, four specimen drawers, and a conviction that the most honest way to know a landscape is to stand at its edge after dark and write down whatever answers the light.

Nothing here is taken from the fen that does not need to be. The drawer is small by design; the ledger is the real collection. Correspondence is welcome: keeper@mothledger.example

Apparatus

ItemParticularsState
Actinic tube15 W, 230 V, blue-whiteburning
Calico sheet2.4 × 1.5 m, washed monthlypatched
Trap boxPly, 40 × 40 cm, four chamberssound
Power800 W inverter off a leisure batterysince 2025
CameraMacro lens, available light onlynightly
NotebookWaxed cover, pencil by preferenceNo. 14
Killing jarEthyl acetate, 2019–2022retired

Method, in four moves

  1. Set at dusk

    Sheet hung on the north edge where the alders break the wind; lamp at chest height, box beneath. Everything squared by torchlight before the last colour leaves the sky.

  2. Burn from dark

    The tube goes on when the first star is certain. No music, no phone light — the fen does its own announcing.

  3. Count at midnight

    One slow circuit of the sheet, pencil moving. Anything uncommon goes into a viewing chamber for the camera, ten minutes at most.

  4. Release at dawn

    Whatever was held is walked out to the hedge and given back. The lamp is the loan; the fen keeps the title.

The station, from above

Sheet, 2.4 m calico Lamp, 15 W actinic Trap box Fen — approach Approach N ↑
Fig. 2. Plan of the Alder Fen station, drawn to no particular scale.

House rules

  • 01

    Whatever the sheet gives, the dawn takes back. Nothing kept lives past sunrise unless it was already dead on arrival.

  • 02

    The drawer takes only what the ledger cannot hold — one fair specimen of a species, never two.

  • 03

    The lamp is a guest of the fen. Leave the bank as the owls found it.

History of the station

  • 2019

    First light. Nine moths, three species, one convert.

  • 2021

    Drawers I–IV built from reclaimed school joinery; the catalogue opens at specimen Nº 1.

  • 2023

    Photography-first policy adopted; the killing jar retires to a high shelf.

  • 2025

    Generator swapped for battery and inverter. The fen gets its quiet back.

  • 2026

    Season Nº 8 underway — survey night 214 and counting.