Thank you for taking in these lucky pigeons. I'm sure you and your wife are already in love with them. Your loft looks very nice, the pigeons must be feeling pretty grateful right about now--great food, great home, great people to care for them! Please feel free to ask any questions you think of. The grit should be available at all times for them. For feed, it is recommended around one tablespoon per pigeon, twice a day, though I would free-feed them for awhile until they're back to 100%. Just make sure to use deep-sided feeders, in order to avoid seed spillage, as it attracts rodents (who can cause disease) and to avoid spending extra money on seed. They will probably be gobbling up the best seeds first, which at this point is okay until they get their health back. Then down the line, you can try feeding them as much as they will eat in about fifteen minutes (including the "not so favorite" seeds lol), twice a day. I have one aviary I do that in, and one they free-feed in all day since it has my disabled or elderly birds in it. Good luck!!