"the_constructor" wrote in message
...
I have a wooden shed and on the side of it near to the top, I have fitted a
nesting box for bluetits, which they are just staring to know is there.

This morning at 5am, the wife had to get up and whilst walking across the
landing looked out of the staircase window and saw the local ginger cat
first sat on top of the shed then it started sniffing and pawing the bird
box. Now that it knows the bird box is there it will no doubt be coming on
a regular basis.

Unfortunately, I can not put the bird box anywhere else so what can I do.

I had thought of putting nails on top of the bird box to deter the cat,
but I do not want to harm the birds. I thought of putting a strip of nails
on top of the shed above the bird box, but there again it may be harmful
to the birds. Then I suggested to the wife that stay on guard duty every
night, but all I got was a wallop across the lughole.

Any suggestions please?

A wide flap of something stiff but flexible nailed to the edge of the shed
roof, continuing over the top of the box. An offcut of vinyl flooring would
be ideal. The cat won't want to walk on something that gives under its
weight.

Colin Bignell