What to do with pigeons?

Hello 

I need some advice on pigeons.

Last year we had 2 beautiful white pigeons appear in our garden. Apparently, they were residents of a dovecot nearby on a piece of land. A school bought the land and removed the dovecot and all the pigeons were sent off to live in the wild.

The 2 pigeons have since then had at least 3 sets of babies (they even had some over Christmas) and now we have a flock (how many are babies and how many are outsiders I don't know) of about 11. As I frequently put food out for the garden birds they now all live on our roof, and seem to be nesting underneath our solar panels.

They seem quite tame, I can get quite close to them before they fly away, and they seem to like sitting on the roof looking down at what myself and my husband are doing.

My question is, are they ok? How tame would they have been being in a dovecot, should we just leave them be, should we be discouraging them, will they need extra help to feed or will they be able to fend for themselves. Should we stop providing food at all to any birds to discourage them?

I quite like them, and it's interesting see their babies range from pure white to standard rock pigeon and all sorts of varieties in between, but their rate of multiplication has made me worry we will be covered with pigeons soon!