Actually it stands for Bird Patrol. When my brother and I were kids, we used to think that their white and dark blue plumage made them look like little police cars. So, they were dubbed with the name that we still use now.
Okay, my connection has been quite flaky the last little while and swallowed my last post. So if Cepter and ShortAssassin wish to start posting, please do. Note that you both start in the Hatted Badger pub where Froud and Forge are.