"ARWadsworth" wrote in message
. uk...
As per the header.

I found a dead mouse today in a CU and the only entry point I could find
was where the tails entered and even that seemed too small to let the head
through.

According to the man from Rentokil, anything you can push a Bic Biro
through - say about 6mm diameter. Apparently their skull joints are
flexible, allowing them to pass through holes that are smaller than the
normal head size.

Colin Bignell