An eagle-eyed walker reported to us that they had seen a caterpillar nest on an oak treee in Sparrow Wood. Checking on line it is confirmed as Oak Processionary Moth - we knew we had it in the London Borough of Bromley, but this is the first reported sighting in Crofton and Sparrow Woods.
The caterpllars are covered in small hairs which can cause health risks in humans. To minimise health risks: