Hi all   
I caught the pigeon who is quite tame really.  He is now in our garage and has water and all I had to give him was rabbit food as there are seeds in it.  I will give him some rice in the morning. 
Hopefully he will feel like flying away so I will let him in the garden first thing to see how that goes. 
What I read on his ring was HET 1912, hope someone can help me with that so I can call the owner. 
Many thanks for the replies so far. 
Sorry to but in on your thread, Julie, I just didn't know what else to do. 
Julie - the new one.