The Gang

Contrast flashes, white against black,
Moving up into the trees,
In organised mayhem.
These are a young gang of hoodlums.
This is their patch.
My approaching car precipitates,
a flight for cover.
Their numbers have grown,
A few more recruits have joined.
It is a 'welcome to Spring' sight.
The coolest gang of white-winged choughs,
On the block.