On the uppermost twig of the topmost branch of a lofty lime tree across the road, the very last remaining leaf flutters in the breeze.

High winds and frost have whisked away the rest of the foliage in a very few days but the sole survivor was the last to unfurl in the spring as sap finally reached the tree's apex.

This particular tree is where, in icy weather, redwings congregate in loose flocks to survey the scene but the days are not cold enough yet for them to appear.

However the tree is not devoid of life as dozens of very vocal goldfinches flit among the branches; their song reminding me of canaries to whom of course they are related.

The finches remain in the tree for some time before flying off en-masse, circling around and returning after a few seconds. They spend much of the day in the tree but what they feed on is a mystery.

As I watch, a sudden strong gust of wind plucks the last leaf horizontally off into the distance and once again the goldfinches fling themselves into the air.

Goldfinches are one of our most attractive colourful and exotic species (pictured) and in my district they have increased considerably in recent years.

A favourite spot to watch their antics in winter is alongside the Thames at Canbury Gardens in Kingston where the tall plane trees by the river offer plentiful treats within the pendulous globular seeds.

Thistle heads and teasels are important food sources too,the bird's beaks being specially adapted to probe the latter's formidable dry spiky flower heads to access the tiny seeds within.