"A.Lee" wrote in message
...

Those six inch long wires on blocks - a bit like an upturned brush head,
with fewer bristles.
http://www.birdspikesonline.co.uk/Bi...s/default.aspx

Ah, _that's_ what they're for. Saw lots at KingsX while waiting for my
train, and did wonder a bit - I'd come to the conclusion they were for
vandals, but birds makes more sense.

cheers,
clive