The splendid acacia tree in Duke Street referred to in an earlier post here, is currently look very sorry for itself.
Acacias originate in warmer climes and in England may behave as semi-deciduous, i.e the extent of leaf loss is governed by winter temperatures. This particular specimen has recovered from bad winters in the past, but the winter 2010/11 seems to have been particularly severe. One hopes for the best. . .