September is a critical month for many plants as they attempt to produce viable seed before the first frosts. Rowans and spindles covered with berries are striking evidence of this. September is equally critical for many animals as they gather in food to sustain them through the winter, and in woodlands you are likely to see grey squirrels or jays burying acorns and other nuts.By September most of our migratory birds have flown south to warmer parts. Sometimes the adults leave first and their young follow later on when they have built up their strength – cuckoos and swallows are examples.|Birds that remain here over winter are feedng themselves up for the winter ahead. Feeding parties of tits work their way through the trees, sometimes accompanied by goldcrests. In weedy areas, flocks of goldfinches feed on the seedheads of thistles and other flowering plants.|In some years a second generation of clouded yellows or painted ladies may be emerging.|September brings the main harvest of edible fungi. Ceps, also known as penny bun mushrooms and among the most sought after, come up all through the month in good years, followed late in the month by wood blewits and many other species.|Few flowering plants are still in bloom – common toadflax and devilsbit scabious are among the exceptions.
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