What a shame they're going. I also thought they would be in Liverpool until at least the end of the year. Perhaps a word to the city fathers might make them have a re-think. If enough people write and tell them how much they want them to stay at least they'll know that we care about them.
Hopefully the shops will still have the smaller versions on sale so those who want to can buy them. The cows that were on parade in Manchester a while back were also seen in Prague and a lot of shops there had and still have the smaller versions on sale.