Sir - Modern Art Oxford, can't surely believe that putting a live bird in a cage is art? It's animal abuse to any decent caring person. Seriously though, has the world gone bonkers? Because using an animal, alive or dead, is obscene.

What next? So-called artists using live babies suckling from mum, or a murdered person?

It wouldn't surprise me what some people would do to make themselves famous, or infamous in this case, in order to make a load of money from some idiot gullible people with too money to waste. I'm surprised at the RSPCA though, for agreeing to this exploitation. No wonder they're losing credibility by the day. I wonder what their founder would have made of this fiasco.

Judi Hewitt, Rhyl