Journaling
If you spend enough evenings outside with your ears open, you start to notice that the night has a calendar. Different species take over the darkness at different times of year, and the soundscape shifts gradually from the first frog choruses of late winter to the last autumn calls of migrating thrushes. Keeping a simple monthly record of what you hear is one of the most rewarding habits a night-time naturalist can develop.
Late winter and early spring are quieter than many people expect, but not silent. Tawny owls are in full voice, with the classic "ke-wick" and "hoo-hoo" exchanges that most of us learn as children. Little owls call at dusk, and if you live near water, the first frogs and toads begin to stir. This is a good time to walk familiar routes and re-learn their shapes in the dark, before the leaves close in.
April and May bring the first big change. Nightjars return to their breeding heaths and the churring begins, at first tentative and then increasingly confident. Woodcocks perform their roding flights over woodland edges, uttering a strange mix of croaks and high whistles. Song thrushes and blackbirds sing well into dusk, and the dawn chorus starts earlier and earlier. By late May, a warm evening can feel alive with sound after months of relative quiet.
June and July are the peak months for nightjars. Churring can be heard on almost any still evening, and the birds are busy feeding young. Bats are abundant, pipistrelles and noctules flicking through the half-light, and glow-worms may appear on hedgerows and verges in some areas. This is the time to be out as often as possible, because the season is short and the weather does not always cooperate.
By August, the first signs of change appear. Nightjar churring becomes more sporadic as the breeding season winds down, and by early September many birds have already left for Africa. Migrating waders call overhead at night, their thin whistles drifting down through the dark, and the first redwings and fieldfares arrive later in the autumn. Owls become vocal again as territories are re-established, and the nights grow longer and colder.
Winter nights are quieter, but not empty. Tawny owls duet, foxes scream in the distance, and on still, frosty evenings sound carries remarkably far. This is a good time to read back through your journal, compare years, and plan where you will go when the churring starts again.
The value of a monthly record is not in the individual entries but in the pattern they form. Over a few years, you begin to see how weather, habitat, and timing interact, and you develop a sense of when to expect the first churr or the last roding flight. That sense is hard-won and deeply satisfying, and it is available to anyone willing to spend a few evenings a month standing quietly in the dark.
