If you drive west on the A2 towards Bexleyheath you will see a splendid area of gorse in flower.
Similar patches are on view on the M20 in sandy soil near Ryarsh and on the A229 near Waterham as you approach Margate.
It is in such areas as these the Dartford warbler used to be a resident. However it has never thrived in large numbers as southern England is the northern limit of its range and it suffers badly in harsh winters. It much more common in France and Spain.
It is still seen occasionally but is elusive to photograph. Fortunately a lovely photo of the warbler was taken by Steve Ray at Botany Bay this year. The original is in the Kent Ornithological Society photo archive for 2009 (www.kentos.org.uk).
It is not very conspicuous being fairly dark overall, but the head is blue/grey and the underpart red/brown.

For quiz enthusiasts the other bird with a name connection to a Kent town is the Sandwich tern.