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A short while ago I was driving past Peckham Rye, when my eye was caught by a series of white halos on the grass under some of the trees. It looked as if several small snow storms had targeted some of the larger and more handsome specimens across

.A more usual use for squirrel teeth is visible on several of the sycamores in the park. I've been watching these trees all year; they looked a bit peaky earlier and they are now completely dead, killed by a sooty bark disease, the fungus Cryptostroma

be, I doubt there are many who would mourn its loss from a wildlife perspective, and plenty who would celebrate the final demise of a pernicious triffid.But this vigorous tree does have some wildlife value, as host to one of Britain’s loveliest

have pointed out, snow does make birds all the more obvious. When I peered out later in the day, the apple tree was bending under the burden of several plump … birds. They were silhouetted against the morning light so not immediately identifiable

Going for walks in Dulwich and Sydenham Hill Woods, Peckham Rye or Nunhead Cemetery, I often hear the tap-tap-tapping of great spotted woodpeckers from high up in the trees as they test the dead boughs for tasty insect morsels. We have no large

guises of the harlequin. I met my first pine ladybird last spring, thanks to a heavy gust of wind blowing it out of a tree on to the pavement I was walking along, and I once found the larvae of tiny Scymnus frontalis (which somehow resembled Dougal

A plaintive mewling took me to the end of the garden a couple of days ago. At first I thought a cat had caught a bird or had cornered a fledgling. As I got closer I realised it was coming from a tree and wondered if some strange seagull was lost

high up on the trunk of an old tree at the edge of the clearing. It’s a nuthatch. From this distance its grey-blue plumage makes it look elegant and sleek, rather than the ‘plump’ suggested by all the birding guides. Maybe it’s just had a tough winter

Whilst out running in Peckham Rye Park earlier this week I noticed that the leaves of the horse chestnut trees are starting to show pale brown blotching all over. These are caused by the caterpillars of a minute moth, Cameraria ohridella - the horse

Walking back from the Horniman Museum last week took me past a large oaktree growing just inside a front garden. The tree looks like an old pollardand must pre-date the early 20th century houses hereabouts. What caught myattention were all