Albino Wallaby Loose in UK

An albino wallaby was photographed running wild near Olney, Buckinghamshire. From the news:

"IT trainer Stacey Purdy first saw the bright white animal while walking her dog.
"The 28-year-old saw a pair of pink eyes peeping out of the undergrowth as she strolled through the countryside.
"When it hopped fully into view she recognised it as a wallaby as she had recently returned from a trip to Australia where she fed them at a zoo in Queensland." ...

"There are known to be several groups of wallabies - which are usually greyish brown in colour - thriving in various locations in rural England, particularly Bedfordshire, Buckinghamshire and Suffolk.
"There are dozens of reported sightings each year.
"Two years ago, an albino wallaby was photographed by civil servant Paul French, 29, as he drove through woods at Hanslope, near Milton Keynes - about five miles from the latest sighting."