"Mike" wrote in message
...
Okay,

I've got a concrete drive which gets marked badly at this time of year by
starlings who are eating berries and/or blackcurrants and leaving purple
marks everywhere.

I have tried scrubbing the concrete which brings up the original colour of
the concrete but the bird mess mark remains.

Any advice on what household cleaner or chemical would help remove these
stains ?

Thanks.

Mike.

Strong solution household bleach leave for 30m minutes then hose off ---
note this also an effective weed & mosskiller so use with care near plants