Yep...as previously stated these sugar gliders are your culprits...was just reading about them today in a wildlife news feed
Wildlife Extra - New exotic pests spotted in South West London
I too being a nature nazi am not too happy about it...other than the hope they give the greys a run for their money...but it's definately NOT a good thing, regardless how cute and furry they are!
if you can link back there is a horrid news story about 3 dead blue wales that have been found