Paul wrote
How high a fence will a rabbit jump? I know a rat will climb a 20' wall if
he thinks it's worth it. I thought I might just leave them some food
outside to keep them out :-)
We purchased galvanised wire Rabbit Fencing and it's about 3ft wide so 2ft 6
inches high as you have to dig 6inches into the ground to stop them digging
their way in. Worked so far!
Go to http://www.avsfencing.co.uk/ and look up Rabbit fencing, I think they
give you the spec for it.

IME any food will just encourage rats (unless it's covered in poison)

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Regards
Bob H
17mls W. of London.UK